Milwaukee
Milwaukee Tool M12 HACKZALL Recip Saw (Tool Only)
- SKU:
- MLW2420-20
- Availability:
- Usually Ships Same Day
- Weight:
- 2.75 LBS
Description

DUTY®
M12 HACKZALL Reciprocating Saw
M12 cordless system · Tool only · Battery and charger sold separately
Product Overview
This compact M12 reciprocating saw uses a 1/2-inch stroke for cutting with matching blades.
A variable trigger controls the stroke rate. The QUIK-LOK clamp allows keyless blade changes.
- Compact stroke1/2-inch stroke length.
- Speed controlVariable-speed trigger.
- Blade clampKeyless QUIK-LOK system.
- Work lightIntegrated LED.
Technical Specifications
- Battery system
- M12
- Stroke length
- 1/2 in
- Stroke rate
- 0–3,000 SPM
- Blade clamp
- QUIK-LOK
- Speed control
- Variable trigger
- Work light
- LED
Choose the Correct Fit
Choose a compatible HACKZALL or SAWZALL-style blade with the length and tooth pattern needed for the material. Check for hidden services before cutting.
The 1/2-inch stroke describes blade travel, not maximum cut depth. Leave clearance for the moving blade and support the work so the cut does not pinch it.
Installation & Care
Remove the battery before changing accessories, making adjustments or clearing debris. Inspect the tool and accessory before fitting the battery.
Wait for blade motion to stop before setting the saw down. Clear debris around the clamp and inspect the blade, shoe and battery connection before reuse.
Small Details. Big Jobsite Energy.
Get set. Stay focused. Make your next move count.
THE NEXT JOB.
Ask Willy:
Need help choosing a cordless cutting or finishing tool? Tell us your material, accessory and existing battery system.
Important Product Questions
Are a battery and charger included?
No. This is the exact tool-only model. Choose a compatible M12 battery and charger separately; accessory contents are not a battery kit.
Does stroke length mean cutting depth?
No. Stroke length is the distance the blade travels each cycle. Cutting reach depends on the selected blade, workpiece and available clearance.
What should I check before use?
Confirm accessory fit, speed rating and condition for the task. Follow the tool instructions, secure the work and use the required guards and protective equipment.