Features: Steam Tempered (Steam Oxide) Surface Treatment High Speed Steel Tool Material ANSI ? Tap Standards 6D Usable Tool Depth to Diameter Ratio Drill Point 118 Cylindrical Shank / Straight Shank Right Hand Rotation / Cutting Precision Twist Drill R51 taper length drill bits are available in an extensive range of fractional sizes from 1/64 inch up to 1?3/4 inches. The bright finish prevents workpiece material from sticking to the cutting surfaces of the drill, giving cleaner, more accurate holes, whilst the conventional 118 degree point provides strength and easy re-grinding. Manufactured from High Speed Steel, the tools are suitable for drilling a variety of materials including steel, stainless steel and aluminum. R51 taper length series drills are recommended for drilling deeper holes and in applications where increased reach is required. Details: EAN number: 086071511409 EDP number: 051140 Product name ISO: R511.5/8 Ordering code ANSI: R511.5/8 Gross weight - grams: 2920 Cutting diameter - fractional inch (DC): 1.5/8 Cutting diameter - inch (DC): 1.625 inch Cutting diameter - millimeter (DC): 41.28 mm Length chip flute - fractional inch (LCF): 9.7/8 Overall length - fractional inch (OAL): 15.5/8 Overall length - inch (OAL): 15.625 inch Overall length - millimeter (OAL): 396.88 mm ANSI: R511.5/8 ISO: R511.5/8