100% brand new and high quality material: hss color:silver these high speed thin profile gear wheel can be installed on the electric grinding to cut ferrous metals, non-ferrous metals, plastic, wood, etc. ? Maximum rpm: 20, 000 made from strong hss high-speed-steel, durable and firm. Size: cutting disc diameter: 25mm rod: 3.17mm please pay attention to safety when using. Quantity:1 set note: due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x rod 1 x hss cutting disc