Master Mechanic, 23 Gauge, Pneumatic Headless Micro Pin Nailer, Aluminum Magazine With Strip Loading, 60 - 100 PSI Operating Pressure, Trigger Safety, Lightweight, Oft Grip Handle Provides Comfort With No Loss Of Control, Anti-Dust Cap Keeps Debris Out Of Tool, Pin Size Selector, Uses 23 Gauge Headless Pin Nails Ranging From 1/2" To 1" Pins, For Fastening Wood In Jobs Such As Hobby Work, Jewelry Cases, Detailed Trim & Custom Work.