Milwaukee 49-57-3120 Steel Hawg Annular Cutter 3-1/8 in

Product Description

The MILWAUKEE 49-57-3120 is a threaded Steel Hawg annular cutter designed for high-speed hole cutting in metal. It uses carbide teeth arranged in an alternating cutting pattern to cut through steel, stainless steel, cast iron, and aluminum at up to 3 times the speed of a standard twist drill bit. The cutter produces holes up to 2 inches deep and has a 3-1/8 inch cutting diameter. The shank uses an M18 x 1.5 metric thread. A spring-loaded, self-ejecting pilot pin serves as both a centering guide and a plug ejector, improving cut accuracy and cycle time. Designed for use with electromagnetic drill presses.

This annular cutter is suited for structural steel fabrication, mechanical and electrical contractors, ironworkers, and pipefitters who need clean, full-diameter holes in heavy metal plate or structural members. The cutter is compatible with Milwaukee magnetic drill presses including the 4262-1 using arbor 49-57-0030 and the 4292-1 using arbor 49-57-0010. It also accepts a No. 3 Morse taper arbor assembly 49-57-0010, extending compatibility to most standard electromagnetic drill press setups on the job site or in the shop.

Key Features

• Carbide teeth resist abrasion and produce a cleaner cut edge compared to standard bi-metal cutters
• Alternating tooth form geometry increases cutting speed through steel, stainless steel, cast iron, and aluminum
• Spring-loaded self-ejecting pilot pin doubles as a centering pin for accurate hole placement and faster plug removal
• M18 x 1.5 threaded shank for secure, direct mounting on compatible electromagnetic drill presses
• Compatible with No. 3 Morse taper arbor assembly 49-57-0010 for broader drill press fitment
• Cuts holes up to 2 inches deep per pass

Compatibility

Compatible with Milwaukee 4262-1 magnetic drill press using arbor 49-57-0030, Milwaukee 4292-1 magnetic drill press using arbor 49-57-0010, and most electromagnetic drill presses accepting a No. 3 Morse taper arbor assembly 49-57-0010.

Installation Notes

Installation is performed by electricians, ironworkers, pipefitters, and mechanical contractors using an electromagnetic drill press. Secure the drill press to the work surface with the magnetic base before operation and verify the workpiece is clean and flat for proper magnetic contact. Apply cutting fluid to the cutter and workpiece to extend tool life and improve cut quality. Always follow the drill press manufacturer's operating procedures and applicable OSHA guidelines for magnetic drill press use.

Technical Specifications

• Cutting Diameter: 3-1/8 inches
• Maximum Cutting Depth: 2 inches
• Teeth Per Inch: 2 TPI
• Shank Thread: M18 x 1.5
• Compatible Materials: Steel, stainless steel, cast iron, aluminum
• Length: 4.25 inches
• Width: 4.5 inches
• Height: 3.95 inches
• Weight: 1.36 pounds
• Unit of Measure: Each

Standard Information

• Brand: MILWAUKEE
• Manufacturer Part Number: 49-57-3120