1/4 Heavy Duty Pneumatic Air Hydraulic Pop Rivet Gun Riveter Riveting M4-M10. PNEUMATIC DUTY HYDRAULIC NUT GUN:M4, M5, M6, M8 and M10 Capacity 100PCS Nut, Sturdy plastic case for protection and organized storage. RIVET NUT GUN:Air hydraulic drive design, More labor-saving, More durable. Ergonomic design, Comfortable grip, Easy to operate, No fatigue for long time use. Good hardness, strong wear resistance large pulling force. SCOPE OF APPLICATION:Reciprocating parts are required to be mirror-finished and heat-treated, and the whole gun has high stability and long service life. The Air ...