Description: The grinder has a safety trigger that requires a flick of the thumb to release before the handle can be operated, ideal for preventing accidental operation. Perfect for grinding and polishing metal components. Feature: Mini type, light weight and high speed. Standard configuration 3mm collet. Low noise, low air consumption and high concentricity. Don't worry, quick and easy to operate. Standard configuration special wrench, is more convenient and quick to removing and installing grinding head. Suitable for All kinds of mold, hardware,taps, zippers, hardware tools, various types of complete sets of equipment, glass, stone, handicrafts, jewelry, circuit board manufacturing and other rough finishing, cutting, grinding, finishing operations industry. Specification: Material: Metal Color: Sliver / Blue Working pressure: 90psi (6.2Bar) Chuck Size: 3mm No load speed: 23000rpm Air consumption: 4cfm Weight: 0.45kg Intake interface: 1 / 4BSP Length: 17.5 cm (6-7/8")(appr.) Application: Widely used in all kinds of metal precision machining Package included: 1 x Air Die Grinder 2 x Screw 2 x Spanner Notice: Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering. Please understand that colors may exist chromatic aberration as the different placement of pictures. .Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.