Contractor grade drill bit manufactured from M1 High Speed Steel.
Compared to a conventional 118 degree tip, these drills wont go "walking" on you. 3-Flat shank creates an extra secure hold in your chuck.For use in a wide range of materials in the iron and steel families such aluminum, iron, steel and other metal drilling. Common flute and overall length for minimal adjustment during tool changes 3" Flute Length, 6" Overall Length, 1/2" Shank 45/64" Reduced Shank HSS Contractor Drill Bit, 1/2" Shank.