Features 1、Made of high quality material, durable to use. 2、Low air consumption, low noise and long service life. 3、Lightweight and comfortable ergonomic design, suitable for hand-held homework 4、High speed, small body, grinding speed, to prevent sudden start, easy to operate. 5、It is widely used in all kinds of mold, hardware products, and resin lenses, stone, handicrafts, ornaments, circuit board manufacturing and so on industry need blank shaping, cutting, grinding and finishing homework. Specification Features: 1. Made of high quality material, durable to use. 2. Low air consumption, low noise and long service life. 3. Lightweight and comfortable ergonomic design, suitable for hand-held homework 4. High speed, small body, grinding speed, to prevent sudden start, easy to operate. 5. It is widely used in all kinds of mold, hardware products, and resin lenses, stone, handicrafts, ornaments, circuit board manufacturing and so on industry need blank shaping, cutting, grinding and finishing homework. Specification: Condition: 100% Brand New Model: AG-307 Working Pressure: 90psi (6.2Bar) Chuck Size: 3mm No-load Speed: 20000-25000rpm(The highest value marked on the product) Air Consumption: 4cfm Inlet Port: 1/4bsp Weight: Approx. 771g / 27.2oz Whole Length: Approx. 28cm / 11.0in Handle Length: Approx. 15cm / 5.9in Package List: 1 * Air Die Grinder 2 * Wrench 1 * Inert Port Note: 1. Please infuse 2-3C. C. # 60 pneumatic lubricating oil before use. 2. After infusing oil, please let the grinder freely run several seconds. 3. Fill oil from the real air inlet, and then let let the grinder freely run several seconds to recover the normal moment of force. Package List