SPTA Tungsten Engraving Polishing Drilling Review

✔️【HIGH QUALITY】Prime quality, made of heat-treated tungsten carbide, the hardness can reach to HRC70, all the drill burrs are sharp and sturdy. These double cut burrs are with high degree of finish, can work with all shapes of model with highly accuracy. Their durability is 10 times high than HSS and 200 times than small sanding wheels. ✔️【EASY TO USE】With 1/4"(6mm) shank, easy to grasp and use, fit for most rotary tools and grinders. Suitable for all woodworkers and enthusiasts. Using these carbide burrs can release from the heavy carving or grinding job, shorten working time, improve working environment and complete project faster. ✔️【WIDELY USAGE】SPTA carbide burrs can be used on all kinds of metal and metalloid, including quenched steel, marble, jade and bone. They can replace small sanding wheels in the vast majority of conditions. They can be used for metalwork, tool making, model engineering, wood carving, jewelry making, welding, chamfering, casting, deburring, grinding, cylinder head porting and sculpting. ✔️【PACKAGE INCLUDE】8pcs of cardide burrs with mixed shapes, shapes include SA, SC, SD, SL & SF, come with a convenient storage case. With 1/4"(6mm) shank, head dia, is from 6mm to 12mm. ✔️【QUALITY GUARANTEE】At SPTA's, we aim to provide cost-effective products to all of our customers. Any problem can contact with us, we will give you a best solution. If you are not satisfied with our service, please let us know and we'll do everything we can to make it right!.