The Astro Pneumatic pencil-style die grinder is designed for high speed porting and finishing of small parts. Air Inlet Size (in. NPT): 1/4, CFM at Load: 4, Speed (RPM): 56,000, Min. Hose Size (in.): 3/8, Collet Size (in.): 1/8, Tool Weight (lbs.): 1, Tool Length (in.): 7 7/8 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
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