JB/T 5246.1-1999 Benchtop drilling machine series model

JB/T 5246.1-1999 This standard is a revision of JB/Z 136-89 "Benchtop Drilling Machine Series Model Spectrum". During the revision, only editorial modifications were made in accordance with relevant regulations, and the technical content has not changed. This standard is part of the JB/T 5246 "Benchtop Drilling Machine" series of standards. This series of standards includes the following two parts: JB/T 5246.1-1999 Tabletop drilling machine series model JB/T 5246.2-1991 The accuracy of the benchtop drilling machine is consistent with this series of standards The supporting standards are: GB/T 2813-1989 Benchtop drilling machine parameters JB/T 3061-1991 Benchtop drilling machine technical conditions JB/T 5245-1991 General benchtop drilling machine accuracy JB/T 5756-1991 Benchtop drilling machine spindle end JB/T 8647- 1997 Accuracy Inspection of Light Benchtop Drilling Machines This standard specifies the series composition, use, performance and structural characteristics, varieties and parameters of benchtop drilling machines. This standard applies to newly designed benchtop drilling machines. This standard was first published in 1979 and revised for the first time in March 1989. JB/T 5246.1-1999 Benchtop drilling machine series model JB/T5246.1-1999 Standard download and decompression password: www.bzxz.net

ICS 25.080.40
Machinery Industry Standard of the People's Republic of China
JB/T5246.1-1999
Bench Drilling Machine
Issued on 1999-05-20
Series Model Spectrum
Implementation on 2000-01-01
State Bureau of Machinery Industry
Issued
JB/T 5246.1—1999
Foreword
This standard is a revision of JB/Z13689 "Series Model Spectrum of Bench Drilling Machine". During the revision, only editorial modifications were made in accordance with relevant regulations, and the technical content remained unchanged.
This standard is part of the JB/T5246 "Bench Drilling Machine" series of standards, which includes the following two parts: JB/T 5246.1—1999
JB/T5246.2—1991
Bench Drilling Machine Series Spectrum
Bench Drilling Machine Accuracy
The standards supporting this series of standards are:
GB/T 2813—1989
JB/T 3061—1991
JB/T 52451991
JB/T 5756—1991
JB/T8647—1997
Bench drilling machine parameters
Bench drilling machine technical conditions
Universal bench drilling machine accuracy
Bench drilling machine spindle end
Light bench drilling machine accuracy inspection
This standard replaces JB/Z136—89 from the date of implementation. This standard is proposed by the National Technical Committee for Standardization of Metal Cutting Machine Tools. This standard is under the jurisdiction of the Boring and Drilling Machine Branch of the National Technical Committee for Standardization of Metal Cutting Machine Tools. The responsible drafting unit of this standard: Hangzhou West Lake Bench Drilling Factory. This standard was first issued in 1979 and revised for the first time in March 1989. 1 Scope
Machinery Industry Standard of the People's Republic of China
Bench drilling machine
Series spectrum
This standard specifies the series composition, purpose, performance and structural characteristics, varieties and parameters of bench drilling machines. This standard applies to newly designed bench-type drilling machines. 2 Reference standards
JB/T5246.11999
Replaces JB/Z136-89
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T1443—1996
GB/T60901993
JB/T5245--1991
JB/T 5246—1991
JB/T8647—1997
3 Series composition
Self-clamping cone for machine tools and tool shanks
Drill chuck cone
Precision of general bench drilling machines
Precision of bench drilling machines
Precision inspection of light bench drilling machines
The series composition of machine tools is shown in Figure 1.
High-speed bench drilling machine
Bench tapping machine
Standard bench drilling machine
(Standard type)
Bench drilling machine
Series composition
Universal bench drilling machine
(Universal type)
Light bench drilling machine
(Light type)
Approved by the State Machinery Industry Bureau on 1999-05-20 Drawing 1
Floor-type drilling machine
Bench row drilling machine
Multi-axis adjustable bench drilling machine
Rotation Tower drilling machine
Coordinate table drilling machine
High-speed table drilling machine
Bench tapping drilling machine
Floor-type drilling machine
Bench row drilling machine
Multi-axis adjustable table drilling machine
High-speed table drilling machine
Floor-type drilling machine
Household table drilling speed
CNC coordinate table drilling machine
2000-01-01 implementation
4 Application and performance
4.1 Standard
The type of machine tool is shown in Figure 2.
4.1.1 Standard bench drilling machine
JB/T5246.1-1999
Figure 2
Standard bench drilling machine ("standard type" may be omitted) is a standard basic series, mainly applicable to general machinery manufacturing industry: in single piece or batch production, drilling, reaming and boring work on parts with high hole accuracy. Its structural features:
a) The spindle moves axially or rotates in the spindle box; b) The spindle box is fixed at the upper end of the column or rotates on the column, and moves up and down; c) For machine tools with fixed spindle boxes, there should be a workbench that can rotate around the column and move up and down: For machine tools with spindle boxes that can rotate and move up and down, a workbench that can rotate around the column and move up and down can be added to expand the scope of use of the machine tool. The accuracy of the bench drilling machine should meet the requirements of JB/T5246. 4.1.2 High-speed bench drilling machine
The spindle speed is relatively high, and it is mainly suitable for small hole processing of light metals such as aluminum alloy and thin plate parts. The rest is the same as 4.1.4.1.3 Bench tapping drilling machine
Bench tapping drilling machine is suitable for drilling, expanding, reaming and tapping in single or batch production. It is a variant product with a tapping mechanism added to the bench drilling machine. The forward and reverse rotation of the spindle during tapping is generally completed by electrical control. 4.1.4 Floor-standing drilling machine
Floor-standing drilling machine is suitable for drilling, expanding and reaming larger parts. It is a variant product based on the bench drilling machine with a higher column and larger base size.
4.1.5 Bench-type drilling machine
Bench-type drilling machine is suitable for continuous processing of multiple hole diameters and multiple T-sequences on the same part in batch production. It is a variant product with more than two bench-type drilling machines or general bench-type drilling machines without a single base, installed side by side on a common base. 4.1.6 Multi-axis adjustable bench-type drilling machine
JB/T5246.1—1999
Multi-axis adjustable bench-type drilling machine is suitable for the processing of multi-hole parts in batch production. It has multiple spindles with adjustable distance between axes, and can adapt to the processing of different parts by adjusting the distance between axes. 4.1.7 Turret bench-type drilling machine
Turret bench-type drilling machine is suitable for concentrated processing of multiple processes. It has an indexable turret head and can be installed with tools required for multiple processes. 4.1.8 Coordinate table drilling machine
Coordinate table drilling machine is suitable for drilling parts with certain hole spacing accuracy requirements. It is a variant product of a table drilling machine of corresponding specifications plus a coordinate T table.
4.1.9 CNC coordinate table drilling machine
CNC coordinate table drilling machine is suitable for processing parts with certain hole spacing accuracy requirements. Its coordinate positioning and drilling process are automatically controlled by a digital control system.
4.2 General type
General table drilling machine is a general basic series. The machine tool is mainly suitable for general machinery manufacturing industry. In single or batch production and maintenance of mechanical equipment in other industries, it can drill, expand and drill holes with general accuracy. Its structural features are basically the same as those of the table drilling machine. The variant products of the general table drilling machine, such as high-speed table drilling machine, table tapping machine, floor-standing drilling machine, table drilling machine, and multi-axis adjustable table drilling machine, have basically the same structural features and uses as the variant products corresponding to the table drilling machine. The precision of general-purpose drilling machines shall comply with the provisions of JB/T5245. 4.3 Lightweight
Light benchtop drilling machines are the basic series of light-weight machines. The machine tools are suitable for agricultural machinery, farms, machinery repair factories and township enterprises, and are used for drilling, reaming and boring in single-piece and batch production. The structural characteristics of light benchtop drilling machines are basically the same as those of benchtop drilling machines, and their rigidity, weight and overall dimensions are generally lower than and smaller than the corresponding specifications of general-purpose benchtop drilling machines.
The structural characteristics and uses of the variants of light benchtop drilling machines, high-speed benchtop drilling machines, floor-standing drilling machines and the corresponding variants of various drilling machines are basically the same.
The precision of light benchtop drilling machines shall comply with the provisions of JB/T8647. The household benchtop drilling machine is suitable for drilling and reaming in the repair of daily-use machines at home. This machine tool has the characteristics of simple structure and light weight, and its precision is lower than the indicators specified in JB/T8647. 5 Varieties
The varieties of standard benchtop drilling machines, universal benchtop drilling machines and their variants are shown in Table 1. 5.1
Maximum drilling diameter
Standard benchtop drilling machine
High-speed benchtop drilling machine
Tapping drilling machine||tt ||3
25| |tt||o
Maximum true diameter of drilling
Floor-standing drilling machine
Benchtop row drilling machine| |tt||Multi-axis adjustable table-top knotting machine
Turret table-type drilling machine
Coordinate table-top knotting machine
CNC coordinate table-type knotting machine
Universal table-top knotting machine|| tt ||Universal high-speed desktop knotting machine
Universal desktop tapping drilling machine
Universal floor-standing drilling machine
Universal desktop row drilling machine
Universal multi-axis adjustable bench drilling machine||tt | |3
JB/T5246.1-1999
Table [(End)
o||tt | |o
o| | tt||The varieties of household desktop drilling machines and their variants are shown in Table 2. Light benchtop drilling machine,
Table 2
Large drilling diameter
Lightweight benchtop drilling machine
Lightweight high-speed benchtop drilling machine
Lightweight Floor-standing station bed
Household desktop drilling machine
Household floor-standing drilling machine
Parameters
o| | tt | |Span L
The spindle stroke is
The maximum moment distance of the shaft leakage surface to the bottom. 1 working surface Hmm
360°| |tt||12
o||tt ||o
o| |tt||16
o|| tt||o
220-240|| tt||125
o||tt| |25
Maximum drilling diameter D\
Mohs super reading tank number
(according to GB/ T 60901993) ||tt | )
Spindle speed range
Motor power
JB/T5246 .1-1999
Table 3 (End)
1400~
450 ~4000
335~3150||tt| |550
2502500
224~2360
1) The maximum drilling diameter D refers to the use of high-speed steel twist drill bits with standard edge density. On medium tensile strength steel, use economical Cutting specifications are made plus 1' for maximum drilling capacity.
2) Suitable for benchtop drilling machines with 1 working table.
3) Suitable for floor-standing drilling machines.
The basic parameters of light bench drilling machines and household bench drilling machines are shown in Table 4. 6.2
Table 4
Maximum pin hole diameter D
Guizhou distance L
The spindle stroke is
The maximum distance from the spindle end surface to the working surface of the base H Morse short round tank number
circle
dimensional| | tt | tt||(according to GB/T 1443-1996)
6|| tt||140
2||tt| |13
1180 *
6702| | tt | | mm | The maximum drilling capacity when adding 1 to the cutting specification,
2) is suitable for benchtop drilling speed with 1 working table. 3) Suitable for floor-standing drilling machines.
Accessories supplied for special order
a) Machine flat-nose pliers:
b) Cross machine flat-nose pliers;
e) Tapping chuck;||tt ||d) Multi-axis head;
e) Simple coordinate workbench.
JB/T 5246.1 1999
Maximum drilling diameter
Floor-mounted drilling machine
Benchtop row drilling machine
Multi-axis adjustable benchtop structure bed
turret tabletop drilling machine
coordinate tabletop knotting bed
CNC coordinate tabletop knotting machine
universal desktop knotting machine
universal high-speed desktop knotting machine|| tt ||Universal benchtop tapping drilling machine
Universal floor-standing drilling machine
Universal benchtop row drilling machine
Universal multi-axis adjustable benchtop drilling machine
o| | tt||-
JB/T5246. 1 -1999
Table【(End)
o| | tt||o
o||tt | |o
Household desktop drilling machine and its variant products The varieties are shown in Table 2. Light benchtop drilling machine,
Table 2
Large drilling diameter
Lightweight benchtop drilling machine
Lightweight high-speed benchtop drilling machine
Lightweight Floor-standing station bed
Household desktop drilling machine
Household floor-standing drilling machine
Parameters
o| | tt | |Span L
The spindle stroke is
The maximum moment distance of the shaft leakage surface to the bottom. 1 working surface Hmm
360°| |tt||12
o||tt ||o
o| |tt||16
o|| tt||o
220-240|| tt||125
o||tt| |25
Maximum drilling diameter D\
Mohs super reading tank number
(according to GB/ T 60901993) ||tt | )
Spindle speed range
Motor powerbzxz.net
JB/T5246 .1-1999
Table 3 (End)
1400~
450 ~4000
335~3150||tt| |550
2502500
224~2360
1) The maximum drilling diameter D refers to the use of high-speed steel twist drill bits with standard edge density. On medium tensile strength steel, use economical Cutting specifications are made plus 1' for the maximum drilling capacity.
2) Suitable for benchtop drilling machines with 1 working table.
3) Suitable for floor-standing drilling machines.
The basic parameters of light bench drilling machines and household bench drilling machines are shown in Table 4. 6.2
Table 4
Maximum pin hole diameter D
Guizhou distance L
The spindle stroke is
The maximum distance from the spindle end surface to the working surface of the base H Morse short round tank number
circle
dimensional| | tt | tt||(according to GB/T 1443-1996)
6|| tt||140
2||tt| |13
1180 *
6702| | tt | | mm | The maximum drilling capacity when adding 1 to the cutting specification,
2) is suitable for benchtop drilling speed with 1 working table. 3) Suitable for floor-standing drilling machines.
Accessories supplied for special order
a) Machine flat-nose pliers:
b) Cross machine flat-nose pliers;
e) Tapping chuck; ||tt ||d) Multi-axis head;
e) Simple coordinate workbench.
JB/T 5246.1 1999
Maximum drilling diameter
Floor-mounted drilling machine
Benchtop row drilling machine
Multi-axis adjustable benchtop structure bed
turret tabletop drilling machine
coordinate tabletop knotting bed
CNC coordinate tabletop knotting machine
universal desktop knotting machine
universal high-speed desktop knotting machine|| tt ||Universal benchtop tapping drilling machine
Universal floor-standing drilling machine
Universal benchtop row drilling machine
Universal multi-axis adjustable benchtop drilling machine
o| | tt||-
JB/T5246. 1 -1999
Table【(End)
o| | tt||o
o||tt | |o
Household desktop drilling machine and its variant products The varieties are shown in Table 2. Light benchtop drilling machine,
Table 2
Large drilling diameter
Lightweight benchtop drilling machine
Lightweight high-speed benchtop drilling machine
Lightweight Floor-standing station bed
Household desktop drilling machine
Household floor-standing drilling machine
Parameters
o| | tt | |Span L
The spindle stroke is
The maximum moment distance of the shaft leakage surface to the bottom. 1 working surface Hmm
360°| |tt||12
o||tt ||o
o| |tt||16
o|| tt||o
220-240|| tt||125
o||tt| |25
Maximum drilling diameter D\
Mohs super reading tank number
(according to GB/ T 60901993) ||tt | )
Spindle speed range
Motor power
JB/T5246 .1-1999
Table 3 (End)
1400~
450 ~4000
335~3150||tt| |550
2502500
224~2360
1) The maximum drilling diameter D refers to the use of high-speed steel twist drill bits with standard edge density. On medium tensile strength steel, use economical Cutting specifications are made plus 1' for maximum drilling capacity.
2) Suitable for benchtop drilling machines with 1 working table.
3) Suitable for floor-standing drilling machines.
The basic parameters of light bench drilling machines and household bench drilling machines are shown in Table 4. 6.2
Table 4
Maximum pin hole diameter D
Guizhou distance L
The spindle stroke is
The maximum distance from the spindle end surface to the working surface of the base H Morse short round tank number
circle
dimensional| | tt | tt||(according to GB/T 1443-1996)
6|| tt||140
2||tt| |13
1180 *
6702| | tt | | mm | The maximum drilling capacity when adding 1 to the cutting specification,
2) is suitable for benchtop drilling speed with 1 working table. 3) Suitable for floor-standing drilling machines.
Accessories supplied for special order
a) Machine flat-nose pliers:
b) Cross machine flat-nose pliers;
e) Tapping chuck;||tt ||d) Multi-axis head;
e) Simple coordinate workbench.
JB/T 5246.1 1999
1-1999
Table【(End)
o| |tt||o
o||tt ||o
Household desktop drilling machine and its variants The product varieties are shown in Table 2. Light benchtop drilling machine,
Table 2
Large drilling diameter
Lightweight benchtop drilling machine
Lightweight high-speed benchtop drilling machine
Lightweight Floor-standing station bed
Household desktop drilling machine
Household floor-standing drilling machine
Parameters
o| | tt | |Span L
The spindle stroke is
The maximum moment distance of the shaft leakage surface to the bottom. 1 working surface Hmm
360°| |tt||12
o||tt ||o
o| |tt||16
o|| tt||o
220-240|| tt||125
o||tt| |25
Maximum drilling diameter D\
Mohs super reading tank number
(according to GB/ T 60901993) ||tt | )
Spindle speed range
Motor power
JB/T5246 .1-1999
Table 3 (End)
1400~
450 ~4000
335~3150||tt| |550
2502500
224~2360
1) The maximum drilling diameter D refers to the use of high-speed steel twist drill bits with standard edge density. On medium tensile strength steel, use economical Cutting specifications are made plus 1' for maximum drilling capacity.
2) Suitable for benchtop drilling machines with 1 working table.
3) Suitable for floor-standing drilling machines.
The basic parameters of light bench drilling machines and household bench drilling machines are shown in Table 4. 6.2
Table 4
Maximum pin hole diameter D
Guizhou distance L
The spindle stroke is
The maximum distance from the spindle end surface to the working surface of the base H Morse short round tank number
circle
dimensional| | tt | tt||(according to GB/T 1443-1996)
6|| tt||140
2||tt| |13
1180 *
6702| | tt | | mm | The maximum drilling capacity when adding 1 to the cutting specification,
2) is suitable for benchtop drilling speed with 1 working table. 3) Suitable for floor-standing drilling machines.
Accessories supplied for special order
a) Machine flat-nose pliers:
b) Cross machine flat-nose pliers;
e) Tapping chuck;||tt ||d) Multi-axis head;
e) Simple coordinate workbench.
JB/T 5246.1 1999
1-1999
Table【(End)
o| |tt||o
o||tt ||o
Household desktop drilling machine and its variants The product varieties are shown in Table 2. Light benchtop drilling machine,
Table 2
Large drilling diameter
Lightweight benchtop drilling machine
Lightweight high-speed benchtop drilling machine
Lightweight Floor-standing station bed
Household desktop drilling machine
Household floor-standing drilling machine
Parameters
o| | tt | |Span L
The spindle stroke is
The maximum moment distance of the shaft leakage surface to the bottom. 1 working surface Hmm
360°| |tt||12
o||tt ||o
o| |tt||16
o|| tt||o
220-240|| tt||125
o||tt| |25
Maximum drilling diameter D\
Mohs super reading tank number
(according to GB/ T 60901993) ||tt | )
Spindle speed range
Motor power
JB/T5246 .1-1999
Table 3 (End)
1400~
450 ~4000
335~3150||tt| |550
2502500
224~2360
1) The maximum drilling diameter D refers to the use of high-speed steel twist drill bits with standard edge density. On medium tensile strength steel, use economical Cutting specifications are made plus 1' for maximum drilling capacity.
2) Suitable for benchtop drilling machines with 1 working table.
3) Suitable for floor-standing drilling machines.
The basic parameters of light bench drilling machines and household bench drilling machines are shown in Table 4. 6.2
Table 4
Maximum pin hole diameter D
Guizhou distance L
The spindle stroke is
The maximum distance from the spindle end surface to the working surface of the base H Morse short round tank number
circle
dimensional| | tt | tt||(according to GB/T 1443-1996)
6|| tt||140
2||tt| |13
1180 *
6702| | tt | | mm | The maximum drilling capacity when adding 1 to the cutting specification,
2) is suitable for benchtop drilling speed with 1 working table. 3) Suitable for floor-standing drilling machines.
Accessories supplied for special order
a) Machine flat-nose pliers:
b) Cross machine flat-nose pliers;
e) Tapping chuck;||tt ||d) Multi-axis head;
e) Simple coordinate workbench.
JB/T 5246.1 1999
1作面最好矩离Hmm
13| |tt||o
o||tt ||o
o|| tt||20
220-240
o|| tt||o
25||tt| |500||tt|>710-
氏超駅纶号
(按GB/T 60901993)
费格短圆维号
(按GB/T 6090—1993 )
宠氏内锦号
（按GB/T1443—1996)
主长行达在线
电视机power
JB/T5246.1-1999
表3(完)
2400~||tt ||12500
B16||tt| |33
450~4000
6||tt| |2
335~3150
2502500
750||tt| |1100
224~2360
1）Maximum drill hole diameterD 英语是以标准刃密的高间锓麻花Drill hole，在中等抗拉发动的钢材上，用于作的内容发动最作加1'对最好drillhole能力。
2)手机带1作台的台式drillbed。
3 ）运动落地式地床。
轻型台式地床和家用台式地床安全电影见表4。6.2
最好闸孔进行D
黔分L
主镆电影的
（按GB/T 6090—1993)
费格短圆闸号
(按GB/T 6090-1993)
莫氏内圆黔号
(按GB/T 1443—1996)
0| |tt||6
B12||tt ||2
1）Maximum drilling hole 自图D 英语案用最好刃离的高车例度花drill头、在中等把控发动的钢材1：，用用求作的切制可以最作加1时最好的drill孔能力，
2）Applicable to 带1作台的台式drillspeed。3）Applicable to 落地式drillbed。||tt ||特成进货电视的下载
a）机用平口推：
b）十字机用平口推；
e）攻丝夹头；
d ）多长头；
e）简易发动工作台。
JB/T 5246.1 1999
1作面最好矩离Hmm
13| |tt||o
o||tt ||o
o|| tt||20
220-240
o|| tt||o
25||tt| |500||tt|>710-
氏超駅纶号
(按GB/T 60901993)
费格短圆维号
(按GB/T 6090—1993 )
宠氏内锦号
（按GB/T1443—1996)
主长行达在线
电视机电影
JB/T5246.1-1999
表3(完)
2400~||tt ||12500
B16||tt| |33
450~4000
6||tt| |2
335~3150
2502500
750||tt| |1100
224~2360
1）Maximum drill hole diameterD 英语是以标准刃密的高间锓麻花Drill hole，在中等抗拉发动的钢材上，用于作的内容发动最作加1'对最好drillhole能力。
2)手机带1作台的台式drillbed。
3 ）运动落地式地床。
轻型台式地床和家用台式地床安全电影见表4。6.2
最好闸孔进行D
黔分L
主镆电影的
（按GB/T 6090—1993)
费格短圆闸号
(按GB/T 6090-1993)
莫氏内圆黔号
(按GB/T 1443—1996)
0| |tt||6
B12||tt ||2
1）Maximum drilling hole 自图D 英语案用最好刃离的高车例度花drill头、在中等把控发动的钢材1：，用用求作的切制可以最作加1时最好的drill孔能力，
2）Applicable to 带1作台的台式drillspeed。3）Applicable to 落地式drillbed。||tt ||特成进货电视的下载
a）机用平口推：
b）十字机用平口推；
e）攻丝夹头；
d ）多长头；
e）简易发动工作台。
JB/T 5246.1 1999
Table 4
Maximum pin hole diameter D
Guizhou distance L
The spindle stroke is
The maximum distance H from the spindle end surface to the base working surface Mohs short round tank number
dimensional
(according to GB/T 6090-1993)
fee Square short round pin number
(according to GB/T 6090-1993)
Morse internal cone number
(according to GB/T 1443-1996)
3| |tt||90
250||tt ||3752
1) Max Drilling diameter D refers to the maximum drilling capacity when using a high-speed regular drill bit with standard blade separation and using economical cutting specifications for medium-strength steel 1:
2) Suitable for benchtop drilling speed with 1 working table. 3) Suitable for floor-standing drilling machines.
Accessories supplied for special order
a) Machine flat-nose pliers:
b) Cross machine flat-nose pliers;
e) Tapping chuck; ||tt ||d) Multi-axis head;
e) Simple coordinate workbench.
JB/T 5246.1 1999
Table 4
Maximum pin hole diameter D
Guizhou distance L
The spindle stroke is
The maximum distance H from the spindle end surface to the base working surface Mohs short round tank number
dimensional
(according to GB/T 6090-1993)
fee Square short round pin number
(according to GB/T 6090-1993)
Morse internal cone number
(according to GB/T 1443-1996)
3| |tt||90
250||tt ||3752
1) Max Drilling diameter D refers to the maximum drilling capacity when using a high-speed regular drill bit with standard blade separation and using economical cutting specifications for medium-strength steel 1:
2) Suitable for benchtop drilling speed with 1 working table. 3) Suitable for floor-standing drilling machines.
Accessories supplied for special order
a) Machine flat-nose pliers:
b) Cross machine flat-nose pliers;
e) Tapping chuck;||tt ||d) Multi-axis head;
e) Simple coordinate workbench.
JB/T 5246.1 1999
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