A perfect tool kit, you can use it to work cleanly, quickly, and easily. Good processing quality, finish high;Can processcast iron, cast steel, carbon steel, alloy steel, stainless steel, copper, aluminum, and other metals, and marble, jade, bone, and other non-metallic. Easy to use, safe and reliable;Reduces the arduous manual labor greatly, reduce the cost of production. Main Features âVERSATILE:Widely used formetalwork, welding, wood carving, model engineering, jewelry making, deburring, grinding, cylinder head porting, and sculpting. âDURABLE:Made of heat-treated carbon steel, the service life is 10 times that of ordinary materials,suitable for machining various metal materials âGENERAL TOOLS:Can be used forsanding, polishing, carving, and decorating wooden surfaces, but can also be used for cork, rubber, and plastic. They replace the small leaf handle wheel and do not cause dust loads. âHIGH-QUALITY MATERIALS:The drill bit is composed of a high-carbon tempered steel structure and precision machined incisors,which can prolong the service life and cut effectively.Make everything needed for grinding easier and more comfortable. âEASY TO USE:Suitable for all-electric and cordless drills.These durable, long-lasting rotary drill bits will bring excellent processing results to your tools. âUSERS:Suitable for all skill levels | this is an essential kit for woodworkers &enthusiasts who clean up welds or works with metal frequently,are easy to grasp and use, safe and reliable. Specifications Note