Features: -Air Grinder 70,000RPM Pneumatic Air Micro Die Grinder Engraving Pen Kit For Polishing Rotary High Speed Cutting Engraving Tool. -Made of metal material, durable, wear-resistant and never rust. -Small size and light weight, pen-shaped design is easy to use with one hand. -The hand of the ergonomics principle to design makes operation more comfortable. -Has a extremely flexible hose with an abrasion guard that allows you to reach' the most difficult areas. -Rear exhaust to prevent the scraps flying or scattering, low noise. -High speed rotating to enhance the working efficiency, For surface grinding and polishing. -Easy to operate, widely used in a variety of molds, metal products, glass, stone, handicrafts, jewelry, circuit board manufacturing and other industries finishing, grinding, carving, polishing. Specification: Color: Black Material: Metal Length: 145mm Chuck Size: about 2.3mm / 3mm No-load speed: 75000 rpm Average air consumption: 90 PSI Recommended tracheal diameter: about 8mm （1/3inch） Package Includes: 1 Pc x Micro Grinder 1 Pc x Hose 2 Pcs x Chuck Wrenches 2 Pcs x 3x10mm Grinding Head 1 Pc x 2.3mm/3mm Collet 1 Pc x Coupler 1 Pc x Oil bottle Note: 1. Please allow slight manual measurement deviation for the data. 2. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.

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