Allstar Performance Step Drill Bit 3 piece Set 1/4" Hex Shank 6, 9, and 13 Step ALL11040

Allstar Performance Step Drill Set 1/4" Hex Shank 3 Piece Set Titanium nitride coated high speed steel   Drill Multiple size holes with one bit Drill sheet metal and aluminum without deforming or distorting Bits start on contact, deburr and chamfer while drilling and does not require a center punch Six Step: 3/16", 1/4", 5/16", 3/8", 7/16", 1/2" Nine Step: 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4" Thirteen Step: 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"