GB/T 20954-2007 Metal cutting tools—Terms in Twist drills

GB/T 1008-1989 General terminology of machining tooling GB/T 1008-2008 General terminology of machining tooling GB/T 1438.1-1996 Taper shank twist drills—Part 1:The types and dimensions for Morse taper shank twist drills GB/T 1438.1-2008 Taper shank twist drills—Part 1:The types and dimensions for Morse taper shank twist drills GB/T 1438.2-1996 Taper shank twist drills—Part 2:The types and dimensions for long Morse taper shank twist drills GB/T 1438.2-2008 Taper shank twist drills—Part 2:The types and dimensions for long Morse taper shank twist drills GB/T 1438.3-1996 Taper shank twist drills—Part 3:The types and dimensions for lengthened Morse taper shank twist drills GB/T 1438.3-2008 Taper shank twist drills—Part 3:The types and dimensions for lengthened Morse taper shank twist drills GB/T 1438.4-1996 Taper shank twist drills—Part 4:The types and dimensions for extra-long Morse taper shank twist drills GB/T 1438.4-2008 Taper shank twist drills—Part 4:The types and dimensions extra-long for Morse taper shank twist drills GB/T 4256-2004 Core drills with parallel shanks and with Morse taper shanks GB/T 4256-2022 Core drills with parallel shanks and with Morse taper shanks GB/T 6135.1-1996 Parallel shank twist drills—Part 1:The types and dimensions for small type twist drills with oversize parallel shank GB/T 6135.1-2008 Parallel shank twist drills—Part 1:The types and dimensions for small type twist drills with oversize parallel shank GB/T 6135.2-1996 Parallel shank twist drills—Part 2:The types and dimensions for parallel shank stub series twist drills GB/T 6135.2-2008 Parallel shank twist drills—Part 2:The types and dimensions for parallel shank stub series twist drills and parallel shank jobber series twist drills GB/T 6135.3-1996 Parallel shank twist drills—Part 3:The types and dimensions for parallel shank jobber series twist drills GB/T 6135.3-2008 Parallel shank twist drills—Part 3:The types and dimensions for parallel shank long series twist drills GB/T 6135.4-1996 Parallel shank twist drills—Part 4:The types and dimensions for parallel shank long series twist drills GB/T 6135.4-2008 Parallel shank twist drills—Part 4:The types and dimensions for extra long parallel shank twist drills GB/T 6135.5-1996 Parallel shank twist drills—Part 5:The types and dimensions for extra long parallel shank twist drills GB/T 6138.1-1997 Subland twist drills for holes prior to tapping screw threads—Part 1:The types and dimensions for subland twist drills with parallel shanks GB/T 6138.1-2007 Subland twist drills for holes prior to tapping screw threads—Part 1:The types and dimensions of subland twist drills with cylindrical shanks GB/T 6138.2-1997 Subland twist drills for holes prior to tapping screw threads—Part 2:The types and dimensions for subland twist drills with Morse shanks GB/T 6138.2-2007 Subland twist drills for holes prior to tapping screw threads—Part 2:The types and dimensions of subland twist drills with Morse typer shanks

ISO 5419:1982