This electricsaw grinding bit is made of titanium coated emery-grains material, wear resistant and will not off sand, can provide long service time. High temperature resistance, corrosion resistance, and is not easy to rust and resist oxidation in humid environment. Easy to install on most electric grinder to sharping your sawchain, with nice heat dissipation effect, and help to improve working efficiency. 12 sets available to meet your diverse use needs, you can choose according to your demands.Specifications:Name: Grinding Bit SetMaterial: Titanium coated emery-grainsType: 6pcs 4.0mm gold, 6pcs 4.8mm gold, 6pcs 5.5mm gold, 12pcs 4.0mm gold, 12pcs 4.8mm gold, 12pcs 5.5mm gold, 6pcs 4.0mm silver, 12pcs 4.0mm silver, 6pcs 4.8mm silver, 12pcs 4.8mm silver, 6pcs 5.5mm silver, 12pcs 5.5mm silver (optional)Item weight:6pcs 4.0mm gold: 19g / 0.67ounce6pcs 4.8mm gold: 19g / 0.67ounce6pcs 5.5mm gold: 19g / 0.67ounce12pcs 4.0mm gold: 38g / 1.34ounce12pcs 4.8mm gold: 38g / 1.34ounce12pcs 5.5mm gold: 38g / 1.34ounce6pcs 4.0mm silver: 19g / 0.67ounce12pcs 4.0mm silver: 38g / 1.34ounce6pcs 4.8mm silver: 19g / 0.67ounce12pcs 4.8mm silver: 38g / 1.34ounce6pcs 5.5mm silver: 19g / 0.67ounce12pcs 5.5mm silver: 38g / 1.34ouncePackage size: 50 * 50 * 50mm / 1.97 * 1.97 * 1.97inPackage weight:6pcs 4.0mm gold: 21g / 0.74ounce6pcs 4.8mm gold: 21g / 0.74ounce6pcs 5.5mm gold: 21g / 0.74ounce12pcs 4.0mm gold: 40g / 1.41ounce12pcs 4.8mm gold: 40g / 1.41ounce12pcs 5.5mm gold: 40g / 1.41ounce6pcs 4.0mm silver: 21g / 0.74ounce12pcs 4.0mm silver: 40g / 1.41ounce6pcs 4.8mm silver: 21g / 0.74ounce12pcs 4.8mm silver: 40g / 1.41ounce6pcs 5.5mm silver: 21g / 0.74ounce12pcs 5.5mm silver: 40g / 1.41ouncePacking List:1 * Set of Grinding Bit