Irwin Unibit High Speed Steel Step Drill Set, 4 pc

Brand: Irwin
SKU: 101148
MPN: 10225
$215.00
decrease increase
Each bit features a radial concave flute to provide greater control
Minimizes vibration and to drill 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
One #21 (10 hole sizes 13/16" – 1-3/8"0 in 1/16" increments, including hole enlarging
Each bit features a radial concave flute to provide greater control
Minimizes vibration and to drill 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
One #21 (10 hole sizes 13/16" – 1-3/8"0 in 1/16" increments, including hole enlarging
Products specifications
Bit TypeSTEP BIT