Designed for professional demolition contractors, plumbers, electricians, HVAC installers and construction trades requiring high-performance cordless cutting with extended runtime and professional storage.
The Milwaukee M18 FSZ-501X combines a POWERSTATE™ brushless motor with REDLINK PLUS™ electronic intelligence to deliver outstanding cutting performance, optimised battery efficiency and long service life. Operating at up to 3,000 strokes per minute with a 32 mm stroke length, the reciprocating saw is engineered for rapid cutting through structural timber, steel pipe, conduit, plastic and demolition materials. Milwaukee states that the POWERSTATE™ motor delivers up to five times longer motor life and up to 30% faster cutting compared to previous generations.
The patented gear-protecting clutch absorbs shock loads generated during blade lock-up situations, extending both gearbox and motor life under demanding site conditions. A lever-operated FIXTEC™ blade clamp enables fast, tool-free blade changes, while the adjustable pivoting shoe improves blade utilisation and cutting stability. Additional features include an integrated LED work light, battery fuel gauge, reinforced metal battery connection and a heavy-duty metal rafter hook for convenient storage on site. This complete kit includes one 5.0Ah REDLITHIUM™ battery, an M12-18 FC Fast Charger and a durable HD Box (Dynacase) for transport and protection. The saw remains fully compatible with the complete Milwaukee M18™ battery platform.
Technical Specifications
- Motor: POWERSTATE™ Brushless
- Platform: Milwaukee M18 FUEL™
- Voltage: 18V
- No-load Stroke Rate: 0–3,000 spm
- Stroke Length: 32 mm
- Blade Clamp: Lever-operated FIXTEC™
- Adjustable Pivoting Shoe
- Patented Gear Protecting Clutch
- REDLINK PLUS™ Electronic Intelligence
- LED Work Light
- Integrated Battery Fuel Gauge
- Metal Reinforced Battery Connection
- Metal Rafter Hook
- Weight with 5.0Ah Battery: 3.8 kg
Package Contents
- 1 x Milwaukee M18 FSZ FUEL SAWZALL Reciprocating Saw
- 1 × Milwaukee M18B5 5.0Ah REDLITHIUM™ Battery
- 1 × Milwaukee M12-18 FC Fast Charger
- 1 x Milwaukee HD Box (Dynacase)
Note: The supplied 5.0Ah REDLITHIUM™ battery is fully compatible with the complete Milwaukee M18™ cordless platform. The reciprocating saw also supports HIGH OUTPUT™ and FORGE™ batteries for increased runtime and sustained cutting performance in heavy-duty demolition applications.









