Cobalt Step Bit Kit (3PC) - Milwaukee Electric Tools

The Milwaukee 48-89-9291 Cobalt Step Bit Kit provides professional technicians and mechanics with durable, precise drilling solutions for daily metalworking tasks. Engineered for high-heat and heavy-duty use across automotive, industrial, and electrical fields, these cobalt step bits deliver clean, accurate holes, extending service life and minimizing bit changes. This kit is recommended for up to 14-gauge material in both mild and stainless steel.

Key Features

• Cobalt Alloy Construction: Engineered for resilience against extreme heat and abrasion, these bits offer up to 15X longer life in stainless steel and over 1,000 holes in mild steel compared to standard HSS alternatives.
• Multi-Diameter Step Design: This 3-piece kit covers a broad range of hole sizes from 1/8" to 1-1/8", providing versatility for various materials and projects while reducing the need for frequent bit swaps.
• Rapid Strike Tip™: Facilitates fast and accurate starts, preventing bit walking on smooth surfaces and enabling 2X faster drilling in challenging materials like stainless steel.
• Precision-Machined Cutting Edges: Designed to produce round, burr-reduced holes, these edges help minimize deburring time for body, chassis, and panel work.
• Optimized Flute Geometry: The elongated dual-flute design ensures efficient chip evacuation and superior heat management for smoother cutting and reduced binding in sheet metal and structural components.
• 3-Flat Secure-Grip™ Shanks: These shanks reduce bit slippage in the chuck, enhancing stability and control during demanding drilling operations.

Applications

Suitable for use with corded or cordless drills and drill presses, this 3-piece cobalt step bit kit is invaluable for:

• Automotive Body and Chassis Work: Ideal for drilling or enlarging holes in body panels, frames, and brackets for wiring, sensors, and hardware on passenger vehicles, light trucks, and commercial fleets.
• Fabrication and Upfitting: Creating precise mount points for aftermarket lighting, auxiliary equipment, and custom brackets in automotive or industrial settings.
• Electrical and Industrial Installations: Drilling knockouts and pass-throughs in boxes, panels, and cabinets within manufacturing or maintenance environments.
• Sheet Metal and HVAC: Cutting clean openings in ductwork, plenums, and general sheet stock.

Specifications

• Manufacturer: Milwaukee Electric Tools
• Model Number: 48-89-9291
• Product Name: Cobalt Step Bit Kit (3PC)
• Weight: 1.31 lb
• Dimensions: 8 x 9.88 x 2.44 in (Package Depth: 9.9 in, Package Height: 2.35 in, Width: 2.43 in, Length: 9.87 in, Height: 10.06 in)