HB 3688-1986
Short shank machine, hand screw tap with rear leading part for regular screw thread of dead hole in ordinary steel machining d＝12~36mm (English Version)

Standard No.

HB 3688-1986

Language

Chinese, Available in English version

Release Date

1986

Published By

Professional Standard - Aviation

Latest

HB 3688-1986

Scope

This standard is applicable to machines with back guides and hand taps for processing ordinary steel through-hole and non-through-hole ordinary threads (GB 192～193-1981, GB 196～197-1981) with verticality, position and coaxiality requirements. .

HB 3688-1986 history

• 1986 HB 3688-1986 Short shank machine, hand screw tap with rear leading part for regular screw thread of dead hole in ordinary steel machining d＝12~36mm