Features With Great Power: Adopting 0.3HP motor, the air die grinder has 20000RPM maximum speed, and the speed is adjustable to meet your working needs. Simple Operation: Conforms to ergonomics, the right angle pneumatic die grinder enables highly accurate operation in narrow corners and seams. Broad in Utility: Suitable for 1/4in and 1/8in chucks, the pneumatic grinder can works with various bits for polishing, deburring and so on. Premium Material: Combining premium zinc alloy and tungsten steel materials, the 90 degree die grinder is not likely to malfunction and durable. Easy in Carrying: Comes with a compact size and a light weight as well, the die grinder is very simple for both outdoor storage and carrying. Specification: Item Type: Air Die Grinder Material: Zinc alloy, tungsten steel. Chuck Size: 1/4in and 1/8in.  Package List:1 x Air Die Grinder2 x Wrench1 x Chuck1 x Air Inlet Connector1 x User Manual Package List 1 x Air Die Grinder 2 x Wrench 1 x Chuck 1 x Air Inlet Connector 1 x User Manual