Milwaukee Step Drill Bit Set (3 PC) features the MILWAUKEE® Step Drill Bits with JAM- Performance, designed to deliver up to twice the hole drilling speed, four times longer life, and up to 50% more holes per battery charge d to competitors. These bits are for drilling both small and large-diameter holes in steel and plastic, optimized specifically for use with cordless drills in High Speed mode. The Rapid Strike™ tip ensures a fast and accurate start while generating less heat, which extends the life of the bit tip. A durable black oxide coating enhances overall bit durability, hole quality, and longevity. For added convenience and precision, each bit includes laser-engraved reference marks that remain visible during drilling. The 3-flat Secure-Grip™ shank provides a firm connection with the drill chuck, ensuring stability and control. This 3-piece set includes bits (48-89-9201), #2 (48-89-9202), and #4 (48-89-9204), delivering jam- performance when used with most professional 18-volt cordless drills powered by lithium-ion battery technology. Model Number: 48-89-9221