GB/T 6138.2-2007

Abolished

Subland twist drills for holes prior to tapping screw threads - Part 2: The types and dimensions of Subland twist drills with Morse typer shanks

攻丝前钻孔用阶梯麻花钻第2部分：莫氏锥柄阶梯麻花钻的型式和尺寸

Standard Type

GBT

ICS

25.100.30

CCS

J41

Status

废止

Issue Date

2007-06-25

Implementation

2007-11-01

Responsible Dept

中国机械工业联合会

Drafting Unit

中国机械工业联合会

🔗 Related Standards / 同类标准

GB/T 3832.3-1983 Round follower end for broaches--Types and main dimensions GB/T 3832.2-1983 Round shanks for broaches--Types and main dimensions GB/T 3832.1-1983 Rectangular shanks for broaches--Types and main dimensions GB/T 4246-1984 Special tolerance for reamers GB/T 4267-1984 Rotating tools with parallel shanks--Diameters of shanks and sizes of driving squares GB/T 5105-1985 The basic types and dimensions of hobs for 45°pressure angle involute splines GB/T 5104-1985 The basic types and dimensions of hobs for 30°pressure angle involute splines GB/T 6338-1986 Dovetail and inverse dovetail milling cutters with plain parallel shanks