Milwaukee M12 Cable Stapler Kit

The Milwaukee M12 Cable Stapler Kit (model 2448-21) is a high-productivity cordless stapling solution built for electricians and low-voltage installers. It uses 1″ insulated staples to fasten NM-B cable (14, 12, 10 AWG) and low voltage data / communication wiring, reliably sinking staples to the proper depth via a coil-spring mechanism. Its compact, lightweight design allows easy access in tight stud bays or overhead installs, and features such as moveable cable guides, a staple viewing window, LED work light, and dry fire lockout enhance usability and safety. On a full charge with the included M12 CP2.0 battery, it can drive up to 1,200 staples.

Coil-spring depth control

ensures staples are driven consistently to the proper depth for NM-B cable installations.

facilitates use in tight spaces, overhead, and difficult-to-reach areas.

help align and position cable for accurate stapling.

lets the user see the remaining staples in the magazine.

prevents firing when no staples remain in the magazine.

illuminates the work area for better accuracy in low light.

improves safety and control during operation.

large capacity to reduce reload frequency.

can sink up to 1,200 staples on a full M12 CP2.0 battery charge.

part of the broader M12 cordless ecosystem.

Model / SKU: 2448-21

Fastener Type: 1″ insulated staples (Milwaukee standard)

Magazine Capacity: 45 staples

Maximum Staples per Charge: ~1,200 staples with M12 CP2.0 battery

Compatible Cable Types: NM-B (14, 12, 10 AWG), low voltage (CAT, coax, etc.)

Tool Weight: ≈ 4.6 lb (tool + battery)

Tool Length: ~6.5 in

Power Source: M12 lithium-ion battery platform

Trigger Type: Two-finger trigger

Safety Features: Dry fire lockout, staple viewing window, moveable guides

Included in Kit: Stapler (2448-20 body), CP2.0 battery, charger, carry bag

Warranty: 3 years