Features: - Air die grinder tool with comfortable ergonomic design, small size, lightweight, easy to use with one hand, suitable for hand-held homework. - Widely used in all kinds of mold, hardware products, glass, stone, handicrafts, and ornaments and industries that need blank shaping, cutting, grinding, finishing, polishing, and internal processing. Supplied with spanner and adapter for easily operate, quick to assemble, and unassemble. - This Air Die Grinder is lightweight aluminum alloy housing, sturdy and durable, long service life. Quality bearings for smooth and powerful operation, and high accuracy. High-speed rotation can adapt to high-speed precision machining. Lock-off throttle to prevent accidental start-up, safe to use.  Specifications: - 1pc air die grinder - 5pcs 1/4" (6mm) mounted grinding stone - 5pcs 1/8" (3mm) mounted grinding stone - 2pcs hand wrenches - 1pc nipple - 1pc 3mm (1/8") collet - 1pcs bow mold case