【Practical】90° angle head allows flexibility in confined spaces 【High Quality】Small size, easy to carry; Aluminum body, durable service life 【Easy to Install】Convenient disassembly of the grinding head 【Application】Various specifications and wide range of applications 【Reliable】Accidental contact protection switch The 90 degree pneumatic windmill is suitable for grinding and correcting products in the mold, hardware, die-casting, furniture, welding and other industries. Working pressure: 90 psi (6.2 bar) Chuck size: (1/8) 3.18 mm and 1/4 (6.35 mm) No-load speed: 20000 rpm Air consumption Pneumatic wind turbine: 4cfm Weight: 0.7 kg Inlet port: 1/4 BSP Package includes: 1 x Engraving machine 2 x Wrenches 1 x Rubber plate 1 x Rubber rod 1 x 1/4" Air inlet connector 1 x 3.18mm chuck 1 x 6.35mm chuck (installed in the machine) 1 x Torque sand disc green non-woven scouring pad 1 x Zirconium corundum louver 1 x 80 mesh sand disc 1 x wheel wool becomeveryrich