3/16-1/2''---3/16,1/4,5/16,3/8,7/16,1/2 (inch) -- 6.35mm (1/4”) Shank
1/8-1/2''---1/8,5/32,7/32,1/4,9/32,5/16,11/32,3/8,13/32,7/16,15/32,1/2 (inch) -- 6.35mm (1/4” )Shank
1/4-3/4''---1/4,5/16,3/8,7/16,1/2,9/16,5/8,11/16,3/4 (inch) -- 9.53mm (3/8") Shank
3/16-7/8''---3/16,1/4,5/16,3/8,7/16,1/2,9/16,5/8,11/16,3/4,13/16,7/8 (inch) -- 9.53mm (3/8") Shank
1/4-1-3/8''---1/4,3/8,1/2,5/8,3/4,7/8,1,1-1/8,1-1/4,1-3/8 (inch) -- 12.7mm (1/2") Shank