Klein Tools KTSBSPRO Premium 3-Piece Electrician's Step Bit Set with Cutting Oil, Modular Case, 3/8-Inch Hex Shank, Straight Double Fluted

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 CLEAN CUTS: Two straight flutes on this Step Drill Bit provide chip removal and cleaner cuts SECURE GRIP WITH DURABLE HEX SHANK: Thick 3/8-Inch hex shank prevents rounding out in the drill chuck, providing a more positive grip and secure operation LASER-ETCHED MARKINGS: High-visibility markings are provided for primary hole sizes, making it easy to identify the desired hole size and achieve accurate drilling NON-WALKING DRILL TIP: Fast-starting, non-walking drill tip ensures precise and accurate drilling, allowing for clean and professional results MULTIPLE MATERIAL APPLICATIONS: Suitable for steel (up to 16 gauge), wood, plastic, and aluminum, offering versatility and convenience