GB/T 9212-1988 Carbide torch-shaped rotary files

GB/T 9212-1988 Carbide Torch-Shaped Rotary Files GB/T9212-1988 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Flame hardmetal burrs
This standard refers to the international standard ISC) 7755/8-1984 "Carbide Rotary Burrs--1 Types and Dimensions
Types and dimensions are shown in the following figure and table.
Rotary file code
H0307C03
H0618C0640
H0820C0640
H1025C0640
H1232C0640
H1636C0640
China Hengguo
H0307M03
H0618M0640
H0820M0640|| tt||H1025M0610
H1232M0640
H1636M0640
H0307F03
H0618F0640
H0820F0640
H1025F0640
H1232F0640
H1636F0640
Note: 1) This rotary file can be made with a flat head or a pointed head. 1.2 Marking example bzxZ.net
GB921288
Part 8: Torch-shaped rotary file (
(upper 0.7) 36
Carbide torch-shaped rotary file (H type) d = 6mm, l-18mm, d, = 6mm, shank length is 10mm, middle (M) mark is: rotary file H0618M0640GB9212-88 Approved by the State Machinery Industry Commission on May 12, 1988 R
1989-01-01 implementation
Technical conditions
According to the provisions of GB9217-88 "Additional instructions for carbide rotary files:
GB9212-88
Technical conditions"
This standard is proposed by the National Technical Committee for Tool Standardization. This standard is under the jurisdiction of the National Technical Committee for Tool Standardization. This standard was drafted by Chengdu Tool Research Institute and Shanghai Tool Factory. 150
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