Features: Steam Tempered (Steam Oxide) Surface Treatment High Speed Steel Tool Material ANSI ? Tap Standards Right Hand Rotation / Cutting Morse Taper Shank This Precision Twist Drill T400 Drill bit is a core drill with 4 flutes, a Morse taper shank, diameter 1.0000" (1") with an overall length of 11" and a flute length of 6.3/8", according to ANSI standard for enlarging pre-drilled or cast holes prior to reaming, HSS with steam tempered finish for machining free machining, plain carbon and alloy steel and grey and malleable cast-iron. Details: EAN number: 086071246004 Product name ISO: T4001 Cutting diameter - fractional inch: (DC) 1" EDP number: 024600 Cutting diameter - inch (DC): 1 inch Ordering code ANSI: T4001 Cutting edge length - fractional inch (L): 6.3/8 Overall length - fractional inch (OAL): 11" Connection size code machine side (CZC MS): 3 Cutting diameter - millimeter (DC): 25.4 mm Overall length - inch (OAL): 11 inch Overall length - millimeter (OAL): 279.4 mm ANSI: T4001 ISO: T4001