Milwaukee 49-57-8321 Carbide Annular Cutter 2-1/4 Inch

Product Description

The MILWAUKEE 49-57-8321 is a carbide-tipped annular cutter designed for cutting clean holes in sheet metal and structural materials up to 3/16 inch thick. Built with a stainless steel quick-change shank, it installs and removes fast with a compatible quick-change arbor. The cutter works in handheld drills and produces drill-press-quality holes without a pilot pin. At 2-1/4 inches in diameter with a 3/16 inch cutting depth, it handles stainless steel, structural steel studs, brass, aluminum, and other thin sheet materials. MILWAUKEE recommends using Hawg Wash cutting fluid during operation to extend carbide life.

This cutter is suited for sheet metal fabrication, HVAC duct work, electrical conduit knockout applications, and structural steel framing. It performs in job-site conditions where a drill press is not available, making it practical for electricians, HVAC installers, ironworkers, and general contractors working with thin gauge ferrous and non-ferrous metals. The quick-change shank reduces downtime when switching between cutter sizes on the same arbor.

Key Features

• Carbide-tipped cutting edge for extended service life in hard and abrasive metals
• 2-1/4 inch cutter diameter for consistent, clean hole production
• 3/16 inch maximum cutting depth rated for stainless steel and structural steel studs
• Stainless steel quick-change shank compatible with arbor 49-57-0035
• Compatible with handheld drills for drill-press-quality results without stationary equipment
• Lubrication-ready design — use of cutting fluid extends carbide tool life

Compatibility

Designed for use with the MILWAUKEE quick-change arbor 49-57-0035. Suitable for cutting stainless steel, structural steel studs, brass, aluminum, and other thin sheet materials up to 3/16 inch thick.

Installation Notes

Installation requires a compatible quick-change arbor — confirm arbor model before mounting. Secure the workpiece firmly before drilling to prevent movement and maintain hole quality. Apply cutting fluid such as Hawg Wash throughout the drilling operation to reduce heat buildup and extend carbide life. Wear appropriate PPE including eye protection and gloves when working with metal cutting tools.

Technical Specifications

• Cutter Diameter: 2-1/4 inches
• Cutting Depth: 3/16 inch
• Shank Type: Quick-change, stainless steel
• Compatible Arbor: 49-57-0035
• Package Length: 2.45 inches
• Package Width: 2.5 inches
• Package Height: 2.1 inches
• Weight: 0.18 pounds
• UPC: 0045242205660

Standard Information

• Brand: MILWAUKEE
• Manufacturer Part Number: 49-57-8321