Klein Tools QRSTSPRO Premium 3-Piece Electrician's Step Bit Set with Cutting Oil, Modular Case, Impact Rated Quick Release, Double Spiral Flutes

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 EFFICIENT DOUBLE SPIRAL FLUTE: Double spiral flute design removes chips swiftly, enabling faster cuts and drilling CLEAR LASER MARKINGS: Easy-to-read laser markings allow for quick size identification of three hole sizes, enhancing efficiency and accuracy SECURE QUICK-RELEASE HEX SHANK: 1/4-Inch hex shank with quick-release feature provides a firm, positive grip, preventing spinning in the drill MULTIPLE MATERIAL APPLICATIONS: Suitable for steel (up to 16 gauge), wood, plastic, and aluminum, offering versatility and convenience