Master Power High Speed Inline Pencil Grinder Description: Efficiency plus durability for every finishing job. Ideal for precision deburring, blending and smoothing applications. Rear exhaust directs air away from work. Standard with 5 air hose and 1 overhose. Double bearings for increased durability on MP4200 inline. Includes both 1/8” and 3mm collets. Lightweight, ergonomically designed and vibration free. Ideal for tight spots, slim comfortable design with ergonomic grip for operator comfort. Technical Specifications: Model Number: MP4200 Horse Power: 0.1 Free Speed: 70,000-RPM Abrasive Capacity: 1/4” Carbide Bur/1/4” Diamond Pin Length: 5.35”/136 mm Weight: 0.43 lbs./0.2 kg. Hose (I.D.): 3/16”/4.76 mm CFM: 8-CFM Inlet: 1/8” (NPT) Collet Size: 1/8”, 30 mm Model Number MP4200 Horse Power 0.1 Free Speed 000-RPM, 70 Abrasive Capacity 1/4'' Carbide Bur 1/4'' Diamond Pin Length 5.35''/136 mm Weight 0.43 lbs./0.2 kg. Hose (I.D.) 3/16''/4.76 mm CFM 8-CFM Inlet 1/8'' (NPT)