Description The structure is simple, the material is excellent, the effect of the grinding wheel is good, and it saves effort. Very suitable for fast drilling, tapping, etc. And quickly replace the composite cone, using the principle of drilling edge. Improve drill bit utilization, solve the trouble you encounter when buying drill bits to save time and money.Features- Color: Orange.- Material: Brown corundum grinding wheel.- Size: 18.00X9.00X3.00 cm/ 7.07X3.54X1.18 in.-The grinding wheel bit has a simple structure, excellent material, good grinding effect, and labor saving.-Very suitable for fast drilling, tapping, etc. And quickly replace the composite cone, using the principle of drilling edge.-Forget about trying to find the correct angle manually or accidentally making the edge of the tool tapered.-Improve the utilization rate of drill bits, solve the trouble you encounter when buying drill bits, save time and save money.-Made of materials, strong and durable, and long service life.Package Including 2 sets x drill bit sharpeners