|Item||Step Drill Bit|
|Size||9/16 to 1"|
|Number of Hole Sizes||8|
|Material||High Speed Steel|
|Design||Ensures True Starts Without Walking Even on Curved Surfaces|
- Ideal for drilling multiple diameter holes in steel, copper, brass, aluminum, PVC, wood, and laminates up to 1/8" thick. Irwin bits have Speed Point tip design and single flute cutting edge. Cobalt bits resist heat buildup and have 3-sided flattened shank.