The Astro Pneumatic pencil-style die grinder is designed for high speed porting and finishing of small parts. Key Product Specs Air Consumption (CFM) 4 Speed (RPM) 56,000 Air Inlet Size (in. NPT) 1/4 Min. Hose Size (in.) 3/8 Collet Size (in.) 1/8 Additional Product Specs * 56,000 RPM free speed; 90–120 PSI * 1/8in. collet * 1/4in. inlet; 3/8in. hose size dia. * 4 CFM @ load * Ideal for tight spots and for high-speed porting and finishing of small parts
