Klein Tools KTSB15 Step Drill Bit #15 Double Fluted 7/8 to 1-3/8-Inch with Easy-to-Read Step Markings and Targets, 3/8-Inch Hex Shank

FASTER CUTTING AND COOLER OPERATION: Two flutes on this Step Drill Bit enable faster cutting and help keep the bit cooler during use, enhancing efficiency and performance PRECISE DRILLING: The fast-starting, non-walking drill tip ensures precise and accurate drilling, allowing for clean and professional results EASY HOLE SIZE IDENTIFICATION: High-visibility silver targets are provided for primary hole sizes, making it easy to identify the desired hole size and achieve accurate drilling SECURE GRIP WITH THICK HEX SHANK: The thick 3/8-Inch hex shank prevents rounding out in the drill chuck, providing a more positive grip and secure operation VERSATILE WITH 3 HOLE SIZES: This Step Drill Bit offers 3 different hole sizes, providing versatility and allowing you to tackle various drilling tasks DURABLE CONSTRUCTION: The Step Drill Bit is made with high-quality materials for durability and long-lasting performance EASY TO USE: With its user-friendly design, this Step Drill Bit is easy to handle and offers smooth drilling, making it suitable for both DIY enthusiasts and professionals