Irwin Unibit Cobalt High Speed Steel Step Drill Set, 3 pc

M35 cobalt for tough drilling applications and harder materials
Each bit features a radial concave flute to provide greater control, minimize vibration and drill
the truest, most round holes in various materials
3-flatted chuck to prevent chuck slippage
Speedpoint® Tip for fast starting
Laser marked sizes won’t wear off
Set includes:
One #1 (13 hole sizes 1/8" -1/2") in 1/32" increments
One #2 (6 hole sizes 3/16"-1/2") in 1/16" increments
One #3 (9 hole sizes 1/4" – 3/4") 1/16" increments