Plug Chamfer - Machine Screw and Fractional Sizes - National Coarse Tap Set in a Index Case. High Speed Steel

Sizes: 4-40, 6-32, 8-32, 10-24, 10-32, 1/4-20, 5/16-18, 3/8-16, 1/2-13, 5/8-11

Plug Chamfer - Fractional Sizes - National Coarse & National Fine Tap Set in a Index Case. High Speed Steel

Sizes: 1/4-20, 1/4-28, 5/16-18, 5/16-24, 3/8-16, 3/8-24, 7/16-14, 7/16-20, 1/2-13, 1/2-20 

Plug Chamfer - Machine Screw and Fractional Sizes - Gold & Black National Coarse Tap Set in a Index Case.

Sizes: 4-40, 6-32, 8-32, 10-24, 10-32, 1/4-20, 5/16-18, 3/8-16, 1/2-13, 5/8-11

Plug Chamfer - Fractional Sizes - Gold & Black National Coarse & National Fine Tap Set in a Index Case. High Speed Steel

Sizes: 1/4-20, 1/4-28, 5/16-18, 5/16-24, 3/8-16, 3/8-24, 7/16-14, 7/16-20, 1/2-13, 1/2-20 

Plug Chamfer - Machine Screw Sizes - Gold & Black National Coarse & National Fine Tap Set in a Index Case. High Speed Steel

Sizes: 0-80, 1-64, 1-72, 2-56, 2-64, 3-48, 3-56, 4-40, 4-48, 5-40, 5-44, 6-32, 6-40, 8-32, 8-36, 10-24, 10-32, 12-24, 12-28