Heavy duty diamond coated head with knurled handle for grip. Creates very little dust, without chipping, restores and prolongs the life of grinding wheels. Perfect for truing damaged and bumpy bench grinding wheels in quick and easy process. This diamond-coated dresser is a simple way of returning your grinding wheel to tip-top condition. For maximum performance from your bench grinder, it's imperative that the grinding wheels are regularly dressed to maintain their balance and a true grinding profile. Product Name: Diamond Grinding Wheel Dresser Head Size: 45x13x13mm (LxWxH) Length: 103mm (about 4 inches) Color: Silver Material: Diamond Overall Size: 103x45mm Package Contents: 3 * Grinding Wheel Dresser Note: Light and different displays may cause the color of the item to appear slightly different from the real thing. Measurement allowance is +/- 1-3cm.