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The PRECISION TWIST DRILL 5998432 is a jobber-length twist drill bit in wire gauge size 46, with a decimal diameter of 0.0810 inches. Ground from high-speed steel and finished with a steam oxide coating, it features a standard 118-degree split point and a right-hand spiral flute designed for consistent chip evacuation. Overall length is 2.125 inches with a flute length of 1.125 inches. The straight-cylindrical shank seats directly into standard drill chucks without adapters. This is a general-purpose production drill intended for use by machinists, maintenance technicians, and metalworking trades on bench drills, CNC drill presses, and hand-held power tools.
The 5998432 is suited for drilling steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium when used within appropriate feed and speed parameters. Its regular spiral and tapered web configuration make it effective for through-hole and blind-hole applications in light to medium production environments. The Series R18 designation places it within Precision Twist Drill general-purpose jobber-length family. Sold individually, with a minimum order quantity of 12 units per order.
Designed as a general-purpose jobber-length drill bit compatible with standard three-jaw drill chucks accepting straight-cylindrical shanks at 0.0810 inches diameter. Suitable for use in bench drill presses, CNC machines, and hand-held power tools across steel, stainless steel, cast iron, non-ferrous metal, superalloy, and titanium workpiece materials per ANSI standards.
A licensed machinist or qualified metalworking technician should verify spindle speed and feed rate against published HSS cutting data for the target workpiece material before use. Secure the shank fully in the chuck and confirm runout is within acceptable limits before starting the cut. Eye protection and appropriate guards must be in place per shop safety requirements. Do not exceed the maximum drilling depth of 1.125 inches without retracting to clear chips.
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