Adjustable Strength: 5-speed adjustable force with strong penetration, labor-saving and convenient to use. > Thickened Wear-resistant Noise Reduction Cover: silence and noise reduction, low noise during operation. >Automatic Slag Discharge Hole: with high hardness, thickened and durable, which automatically eliminates residue and heat, reliable for safety performance. > Ergonomic Handle: ergonomically designed anti slip handle for comfortable grip, effective oil and slip resistance. > Not Easy to Get Stuck: this machine uses alloy needles, which are not easy to get stuck even after continuous nailing.