3 Review(s)

Forget the days of trying to find the correct angle by hand or accidentally tapering the edge of your tools. Improve the utilization of drill bits, solve the troubles you have been buying drill bits, save time and save money. Made of wear-resistant corundum grinding wheel, durable and sturdy. Suitable for grinding iron bit, not for high hardness bit. Improve drill bit usage. Easy to install,which is convenient to use.