Item Type: Hydraulic Pneumatic Rivet Gun Product Model : KP-702 Applicable Rivets: Steel/aluminum rivets Aluminum/iron Nail Capacity: Approx. 2.4mm / 0.09in 3.2mm / 0.13in 4.0mm / 0.16in 4.8mm / 0.2in Stainless Steel Nail Capacity: Approx. 2.4mm / 0.09in 3.2mm / 0.13in 4.0mm / 0.16in Working Stroke: Approx. 18mm / 0.7in Working Pressure: 0.5-0.7MPA How to Use: Replace The Claw Piece: 1. Use a wrench to loosen the outer socket to CCW; 2. Take out the outer sleeve; 3 Use a wrench to loosen and remove the front jaw sleeve; 4. Replace the three-claw piece, install the front claw cover and the outer tube in turn, to complete. Actual Operation of Adding Hydraulic Oil: 1. Disassemble its base; 2. Clamp the hex nut to pull out the piston; 3. Inject hydraulic oil into the small hole; 4. Install the piston and the base in turn to complete. Size: Approx. 113mm / 4.4in 100mm / 3.9in 40mm / 1.6in 165mm / 6.5in 275mm / 10.8in