NuMax SP123 Pneumatic 23-Gauge 1″ Micro Pin Nailer Review

Will Barinas
Written by
Last update:

Today we're bringing to you our detailed review of the NuMax SP123 Pneumatic 23-Gauge 1" Micro Pin Nailer.

Does the good reputation hold up or not? Let’s find out!

Our rating: 8 / 10

Cost: $

Check Price on Amazon


  • 4 simultaneous air pressure settings
  • Several modes of operation
  • Ambidextrous safety
  • Ideal for trimming, nailing, tightening, and assembly


  • Requires air compressor to operate
  • Occasionally malfunctioning
  • Quite loud

The NuMax SP123 is part of a line of industrial nailers by NuMax. They are known for their sturdy, tough construction and featuring the features that DIY garage, business or professional applications need.

Their line of offerings has expanded to include some specialty applications, such as framing and trim, gluing, joining and laminating applications, caulking, contact adhesives and tack-driving.

This pneumatic pinner uses 23 gauge headless pin nails ranging from 1/2" to 1", and features a lightweight and durable aluminum body, ergonomic grip handle, reversible belt hook and trigger with a safety mechanism that prevents accidental firing. It is able to shoot pins up to 100 millimeters with a consistent staple penetration.

This unit is built for the long haul, with a comparatively short service life, and features a built-in anti-dust cap. The lightweight body is ideal for close up work in tight areas.

The unit is controlled by two knobs. The high speed drive control adjusts the power of the air, and the slow speed control adjusts the speed of ejection, in 0.1 second increments. This provides control over the jaws of the unit, and lets you change the size of the nails used within the unit.

Learn More on Amazon

Not what you’re looking for? Read our roundup review: Best Pin Nailers