Feature: 1. Adjustable Strength: 5 speed adjustable force with strong penetration, labor saving and convenient to use. 2. Thickened Wear resistant Noise Reduction Cover: silence and noise reduction, low noise during operation. 3. Automatic Slag Discharge Hole: with high hardness, thickened and sturdy, which automatically eliminates gunpowder and heat, stable for safety performance. 4. Ergonomic Handle: ergonomically designed anti slip handle for comfortable grip, effective oil and slip resistant. 5. Not Easy to Get Stuck: this machine uses alloy needles, which are not easy to get stuck even after continuous nailing. 6. Diversified Accessories: equipped with a variety of accessories, such as protective glassed, gloves, earplugs, hex key, spring, pin, nails, and more. 7. Scope of Application: fixed anti theft windows, meter boxes, air conditioning racks, ventilation ducts, water ducts, etc 8. Compatible 7.3 and 8.5mm Fastening Nailer Specification: Specifications: Adjustable Strength: 5 Gear Fastening Nailer Size: 7.3 and 8.5mm Material: Stainless Steel Item Size: 355 * 125 * 45mm / 13.98 * 4.92 * 1.77in Item Weight: 1026g / 2.26lb Package Weight: 1768g / 3.89lb Package Size: 40 * 27 * 6.5cm / 15.75 * 10.63 * 2.56in . Package List: 1 * Nail Gun 1 * Pair of Protective Glasses 2 * Hex Wrench 1 * Percussion Spring 1 * Reset Spring 1 * Mini Spring 2 * Pin 1 * Percussion Needle 1 * Cleaning Brush 1 * Storage Case 1 * User Manual (English)