SET CONTAINS 3 STEP BITS: 7/8-Inch, 1-1/8-Inch, and 1-3/8-Inch sizes for creating hole cutouts in panels and j-boxes to accommodate most commonly used 1/2-Inch, 3/4-Inch, and 1-Inch conduit
DURABLE ALUMINUM TITANIUM NITRIDE COATING: Step bits coated with aluminum titanium nitride, 10 times more durable than black oxide, for longer bit life
IMPACT RATED SHAFT: Compatible with impact drivers and standard drills, ensuring versatility and reliable performance