T20 x 3 1/2 Torx Power Bit

T20 x 3 1/2 Torx Power Bit . A unique combination of alloys (nickel, vanadium and molybdenum) give these power bits a Rockwell hardness of RC 59-62 without the brittleness. ITM TECH3 power bits are the ultimate for the professional who demands and deserves only the best.