Titanium Nitride coating extends cutting edge life up to 6x and holds lubricant for a smoother and cleaner cut!!
These step bits have a three flat shank so they do not spin when used in a keyless chuck.
Contents:
2 Step bits with 1/4" shanks:
6 Steps:
3/16",1/4",5/16",3/8",7/16",1/2"
13 Steps:
1/8", 5/32", 3/16",7/32", 1/4", 9/32", 5/16,11/32", 3/8", 13/32", 7/16", 15/32",1/2", 3/16"-1/2"
1 Step bits with 3/8" shanks:
9 Steps:
1/4", 5/16, 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4"
