Features 1、For M3 M4 Nut: The free speed can reach 1500rpm, and the self locking rivet head is suitable for M3 and M4 nuts with strong practicability. 2、Durable Material: Made of excellent alloy steel material, with high hardness and wear resistance, and not easy to deform. 3、Standard Connector: With standard 1/4in air inlet interface, which is easy to connect and no leakage, suitable for various industrial riveting operations. 4、For Parts Fastening: Suitable for fastening in various metal sheet, pipe, cabinet and chassis manufacturing industries. 5、Fine Production: The pneumatic riveting tool kit is finely manufactured, with strong power, efficient and labor saving. Specification Item Type: Pneumatic Rivet Tool Material: Alloy steel Product Model: KV-7801E Free Speed: 1500rpm Working Pressure: 0.6-0.8MPA Working Range: M3 M4 Inlet Connector: 1/4in Package List 1 x Pneumatic Rivet Gun 2 x Riveting Head 2 x Spacer 1 x Hanging Ring