This NSK Impulse air grinder has several unique features setting it apart from other pencil air grinders. A specially designed rotary vane motor produces high torque for the small size grinder while providing a constant speed under various loads. A separate, rear-exhaust hose with silencer provides a remarkably low noise level. A ring throttle at end of tool controls the speed. The unique twist-free hose connection mechanism allows unhindered grinder rotation, thus reducing hose drag and operator fatigue. Ideal for surface grinding with cup wheel as shown. Rotating Speed: 23,000 rpm Proper Air Pressure: 56-85 psi. Air consumption: 5.8 cfm. Air inlet: 1/4" Intake Air Hose Length: 4.5 ft. Exhaust Hose Length: 3.9 ft. Weight: 6.7 oz. Airline filter/oiler unit required for warranty: AL-807 or AC20A Exchangeable Collet Chuck NSK Catalog Number: NK90230
Included Equipment: Collet Chuck ψ1/8" (CHS-3.175): 1 pc. Special Grindstone Arbor (NCH-01): 1 pc. Wrench (8 x 5): 1 pc. Bar Wrench (K-212): 1 pc. Allen Wrench (1.55 mm): 1 pc. Hose (K-213) 4.5 ft. Silencer (K-208): 1 pc. Cup Grinding Stone (NK06104, NK45800): 1 pc. each Rubber Pad (NK11033): 1 pc. Sandpaper Disc (Grits #120, 320, 600, 1000): 2 pcs. each