HTS 116C9 10 Pc Titanium Coated Twist Drill Bits (57) Available sizes: 50 (1.78mm / 0.070in) through 80 (0.34mm/0.014in) Length varies by size: 50 (50.75mm / 1.998in) through 80 (19.95mm / .785in) Self-starting tips Drill sheet metal, steel, copper, brass, aluminum, plastic, plexiglass, wood, vinyl, & more Set of 10 bits with storage tube