This is a kind of multifunctional grinding tool, with more stable and smooth performance, and provides long service life. Adopts brushless motor which does not generate sparks when it is working, and the motor does not wear, can provides long service time. 19500rpm high rotation speed for reliable and productive work. It can be used for surface conditioning and grinding or iron cutting, and home improvement, like cutting and polishing ceramic tile, wood, stone, steel and etc.. Specifications: Name: Electric Grinding Tool Machine material: ABS+metal Type: host, 1pcs battery, 2pcs batteries (optional) Battery: no battery, 1pcs battery, 2pcs batteries (according to your selection) 1pcs battery: 1 * 12V, 1500mAh battery (included) 2pcs batteries: 2 * 12V, 1500mAh battery (included) Rated voltage: 12 V Rotation speed: 19500rpm Grinding spindle thread: M5 Sawblade: diameter=76mm, bore=10mm Item size: 216 * 105 * 71mm / 8.50 * 4.13 * 2.80in Item weight: Host: 540g / 1.19lb 1pcs battery: 706g