8% Cobalt HSS drill bit 9mm STAND 8 piece folding torx key set 62175 IN 8 piece folding torx key set for quickly tightening or loosening fasteners This set of popular sizes is held together in one convenient handle and can fold out to a right angle for maximum leverage or out straight for a screwdriver style Made of heat treated chrome vanadium steel for rugged strength and more durability Drilled tips allow use on tamper resistant security screws Hardened ends for extra high torque during operations High quality fold up handle firmly holds each key so you always have the size you need at hand Ergonomic ABS plastic shell that is stronger than steel and ensures comfort Leather overlays on vamp and heel with tonal backer for home repairs and light jobs 8% Cobalt HSS drill bit 9mm