Milwaukee 48-89-9291 Milwaukee Cobalt Step Drill Bit 3PC Set. INCLUDES. Milwaukee Cobalt Step Bit #1 (1/8-1/2)”, Milawukee Cobalt Step Bit #4 (3/16-7/8)”, Milwaukee Cobalt Step Bit #9 (7/8-1-1/8) FEATURES. Up to 15X Life in Stainless Steel & Over a 1000 Holes in Mild Steel. Up to 2X Faster with Rapid Strike TipT. Elongated dual- flute for best heat management. Smaller steps for a smoothest drilling experience. The Rapid Strike TipT provides fast and accurate starts. Optimized for Drill/Driver. Made in the USA with global materials. Laser engraving for clear stop on size identification. 3-Flat secure-grip shanks reduce bit slippage in the chuck The MILWAUKEE® 3-Piece Cobalt Step Drill Bit Set Cobalt Step Drill Bits are engineered to deliver up to 15X the life in stainless compared to current solutions and up to 1000 holes in mild steel. The Cobalt Step Drill Bits are recommended up to 14ga. The elongated dual-flute design also offers users best hea. Why Shop With Us? WORLD CLASS CUSTOMER SERVICE. Our support agents are here to assist you, Monday through Friday. Photo evidence of damages may be required.