It can work with various specifications of Ram heads, M3-M12 Smart button panel, display power, and adjust the working gear (H is high gear, L is low gear) Forward and reverse switch, switch freely Self-locking gun head, easy to disassemble and assemble Equipped with LED lighting, which automatically lights up when working to meet the needs of different occasions Features: *LED working light. *Silicone non-slip handle. *Pure copper core motor, strong power. *One-button one-hand operation, bid farewell to cumbersome operation. *Multiple holes for heat dissipation and fast cooling. It is not easy to get hot after long time use. Protects from overloading ensuring a long life span, durability, and dependability. *Ergonomic design, suitable for high-intensity work. *This Riveter is fast and rugged ideal for industrial, production, and personal use. Self-locking gun head, easy to disassemble: 1. Put in the hexagonal connecting rod first 2. Press the gun body self-locking ring inward 3. Put in the Ram head 4. Loosen the self-locking ring Specification: Lithium battery voltage: 21V Rivet nut specificatio: M3-M12 Battery: 5200mAh Charging input voltage (V): 90-260 Rechargeable temperature range (Celsius): 0-45 () Weight: 1.82kg Function: memory/normal model Rivet nut material: Stainless steel, Aluminum, Copper Package Included: 1 x Rivet Gun 1 x M3-M12 Head