GB/T 9216-1988 Carbide inverted cone rotary files

GB/T 9216-1988 Carbide inverted cone rotary file GB/T9216-1988 standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Inverted cone hardmetal burrs
Inverted cone hardmetal burrsGB 9216-88
This standard adopts the international standard IS07755/12-1984 "Hard alloy burrs-Part 12: Inverted cone burrs (N type)".
Types and dimensions
1.1 Types and dimensions are as shown in the following figure and table.
Rotary file code
M 0307C03
N 0607C0640
China Gear
N0307M03
N 0607M0640
N0307F03
N0607F0640
* N1213C0640 20* N1213M0640 20t* N1213F0640 20*N 1616C0640
N 1616M0640
M 1616F0640
* N1213C0640 30
1213M064030%*N1213F064030%
N1613C0640
N1613M0640
N1613F0640
Note: According to the order, we can produce with end teeth (No. 1 position is indicated by NE). ② For the specifications with "*", add the angle symbol. bZxz.net
1.2 Marking example
Carbide inverted cone rotary file (N type) d=6mml=7rmm.dl--6mm, shank length is 40mmα=-10°, fine teeth (F), marked as: rotary file N0607F064O10°2 Technical conditions
G13 9216---88
According to GB9217-88 "Technical conditions for carbide rotary files 2".
Approved by the National Machinery Industry Commission on 7988-05-12 and implemented on 1989-01-01
Additional instructions:
GB9216-88
This standard was proposed by the National Technical Committee for Tool Standardization. This standard was drafted by the Chengdu Tool Research Institute and Shanghai Tool Factory. 158
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