D115 - Morse Taper Shank Drills Twist drill with Morse taper shank suitable for a variety of materials and industrial applications. The tang at the end of the shank is used for ejecting the drill from the socket or sleeve. The drive and alignment is derived from the taper lock. General purpose HSS drill Suitable for materials up to 900N/mm Diameter 12.0mm Length 182mm Flute Length 101mm Shank MT#1