Milwaukee M12 23 Gauge Pin Nailer Kit

The Milwaukee M12 23 Gauge Pin Nailer Kit (2540-21) is a compact, cordless finishing tool engineered for precision trim work, molding, cabinetry, and delicate wood joinery. Using a nitrogen-powered air spring mechanism, it achieves consistent depth control comparable to pneumatic systems without hoses, gas cartridges or compressors. Its small form factor and ergonomic design allow access into tight corners and confined spaces. The kit includes the tool, one REDLITHIUM CP1.5 battery, charger, and a contractor bag making it a ready-to-go solution for finishing professionals.

Ideal for carpenters, woodworkers, interior finish crews, and remodelers, this pin nailer is built to deliver clean performance and reduce downtime on the job.

Pneumatic-Level Driving Power

The nitrogen air spring mechanism drives 23-gauge headless pin nails reliably into both softwoods and hardwoods.

Supports pin lengths from ½″ to 1⅜″ (12.7 mm to 34.9 mm).

Up to 750 pin nails per charge when used with the included M12 REDLITHIUM CP1.5 battery pack.

Easily fine-tune drive depth without tools, for flush or just-below-surface pin finishing.

Dry-fire lockout prevents firing when pins are depleted, protecting workpieces and the tool and magazine reload indicator alerts when reloading is needed.

Model: 2540-21 (Kit)

Tool Base Model: 2540-20 (tool-only)

Voltage: 12 V (M12 system)

Pin Gauge: 23 gauge (headless)

Compatible Pin Length: ½″ to 1⅜″ (12.7 mm to 34.9 mm)

Magazine Capacity: 120 pins (approx)

Shots per Charge: Up to 750 pins (with CP1.5)

Length: 8.7 in

Height: 7.7 in

Width: 2.6 in

Net Tool Weight: 3.3 lb (≈ 1.5 kg)

Drive Type / Trigger: Sequential driving, double-action trigger

Warranty: 3-year limited tool warranty