Diablo DSD1375S15 Step Drill Bit, 15 Steps, 1-3/8 Inch Thanksgiving For use wtih 5/16" fiber-cement

For use wtih 5/16" fiber-cement siding products

Non-corrosive polyethylene tank

Store unused product in its original container

Combination  round head

5-point adjustable geared headband (with sweatband) mechanism greatly reduces head

Diablo DSD1375S15 Step Drill Bit, 15 Steps, 1-3/8 Inch Thanksgiving For use wtih 5/16" fiber-cementHighlights: Size: 1 3 8 Inch 15 Steps Impact, Fast Overall size: 7 8 inch To 1 3 8 inch Designed with 1 4" hex shank Can be used with drills & impact drivers Split point tip 132 degree Innovative split point tip design enables fast On point start resulting in increased durability & up to 4x longer life Precision grinding process on each step reduces wear & delivers 2x faster cut Accurate cuts & increased stability in thin metals, pvc, & other plastic