GB/T 9215-1988 Carbide conical tip rotary files

GB/T 9215-1988 Carbide conical pointed rotary file GB/T9215-1988 standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Conical pointed-nose hardmetal burrs
Conical pointed-nose hardmetal burrs This standard adopts the international standard ISO7755/11-1984 "Conditioned Carbide Burrs (Type M)".
Types and Dimensions
1.1 Types and dimensions are as shown in the following figure and table.
Rotary file code
M0311C03Www.bzxZ.net
M 0618C0640
M 1020C0640
M1225C0640
M 1625C0640
1.2 Marking example
Zhongchiguo
M0311M03
M0618M0640
M 1020M0640
M 1225M0640
M1625M0640
M 0311F03
M0618F0640
M 1020F0640
M 1225F0640
M 1625F0640
GB 9215-88
-Part 11: Conical pointed rotary file
Carbide conical pointed rotary file (M type) d=3mm, l=11mmdi=3mm, α=14°, fine teeth (F). Marked as: rotary file M0311F0314°GB9215-882 Technical conditions
According to the provisions of GB9217-88 "Technical conditions for cemented carbide rotary files".
Approved by the State Machinery Industry Commission on 1988-05-121
Implemented on 1989-01-01
Additional notes:
GB9215
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.
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