5/16th drill bit is ideal For: Hardened Metals, Plastic, Wood. These drill bits are for drilling holes. This can be in horseshoes for adding 3/8th studs.

Norseman™ Drill & Tool drill bits, America´s Finest High–Speed Cutting Tools™ Since 1951. Proudly made in America. Committment to Quality at Norseman™ Drill & Tool, begins with the finest tool steel and ends with the world class products. Norseman™ cutting tools are designed, engineered and superbly crafted to provide long lasting durability. America´s Finest High–Speed Cutting Tools™ since 1951.

High speed steel (HSS) is a form of tool steel; high speed steel bits are hard, and much more resistant to heat than high carbon steel. They can be used to drill metal, hardwood, and most other materials at greater cutting speeds than carbon steel bits, and have largely replaced carbon steels.

Drill Bits are for drilling holes in horseshoes for stud holes, for hospital plates, suturing and many other things.

Proudly manufactured in the USA with globally sourced material.