Milwaukee 2821-20 M18 Fuel Sawzall Reciprocating Saw

Product Description

The MILWAUKEE ELECTRIC TOOL CORP 2821-20 is a cordless reciprocating saw built on the M18 FUEL platform, designed for demolition, rough-in cutting, and remodel work across HVAC, plumbing, and electrical trades. It delivers a 1-1/8 inch stroke length with a variable speed trigger that gives the operator direct control over cutting speed. A tool-free quick-change blade system allows fast blade swaps without additional tools. The saw runs on M18 FUEL batteries, sold separately, and is intended for professional trade use where a corded power source is not practical or accessible.

This reciprocating saw fits residential and commercial jobsite applications. It is commonly used by HVAC technicians cutting ductwork and pipe penetrations, plumbers cutting supply and drain lines, and electricians working in tight framing cavities. The variable speed trigger makes it suitable for both aggressive demo cuts and controlled finish work in the same tool. It is packaged as a bare tool, making it compatible with existing M18 FUEL battery systems already on the job.

Key Features

• 1-1/8 inch stroke length for aggressive material removal
• Variable speed trigger for controlled cutting across materials
• Tool-free quick-change blade clamp for fast blade swaps on the job
• Compatible with M18 FUEL battery platform — batteries sold separately
• Bare tool configuration integrates into existing M18 FUEL battery inventories

Compatibility

Designed for use with M18 FUEL batteries and chargers. No specific compatible model numbers or replacement part numbers were provided in the product data.

Installation Notes

Installation and blade changes should only be performed with the battery pack removed from the tool. Always select a blade rated for the material being cut — wood, metal, and composite materials each require specific blade types. Follow applicable OSHA and jobsite safety requirements for reciprocating saw operation, including eye and hand protection. Inspect the blade clamp for secure engagement before each use.

Technical Specifications

• Stroke Length: 1-1/8 inches
• Speed Control: Variable speed trigger
• Power Source: M18 FUEL battery (sold separately)
• Package Weight: 31.9 pounds
• Unit of Measure: EA
• Package Quantity: 4

Standard Information

• Brand: MILWAUKEE ELECTRIC TOOL CORP
• Manufacturer Part Number: 2821-20