Precision Twist Drill 5997512 11/32 in Hss Jobber Drill Bit

Product Description

The PRECISION TWIST DRILL 5997512 is a jobber-length drill bit designed for general-purpose drilling in a wide range of materials. It measures 11/32 inches (0.3438 inches) in diameter with a 118-degree standard point angle and a steam oxide coating that helps reduce friction and resist corrosion. The overall length is 4.75 inches, and the flute length runs 3.4375 inches, giving it the reach typical of a jobber-series bit. Constructed from high speed steel, it is suited for production and maintenance drilling in metal fabrication, mechanical, and industrial service environments. Installation and use require no special tooling beyond a standard drill chuck sized for straight-cylindrical shanks.

This bit is built for drilling steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and other hard materials. Its regular spiral and two-flute configuration promote efficient chip evacuation during through-hole and blind-hole drilling operations. The web-thinned, tapered web design reduces thrust requirements at the drill point, which is particularly useful when working with harder workpiece materials. It fits standard drill presses, hand drills, and CNC drilling equipment that accept straight-cylindrical shanks. The Series R10A-R15A-R18A designation places it within a well-established jobber drill family built to ANSI standards.

Key Features

• 11/32 inch (0.3438 inch) diameter with matching straight-cylindrical shank diameter for consistent chuck fit
• 118-degree standard point angle suited for general-purpose metal drilling
• Steam oxide coating reduces friction and provides light corrosion resistance
• Web-thinned, tapered web reduces cutting thrust on entry
• Two-flute regular spiral design promotes chip clearance during drilling
• Meets ANSI standards and NAS 907 specification

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with any standard drill chuck or collet accepting an 11/32 inch straight-cylindrical shank. Rated for use in steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium workpieces per the manufacturer workpiece material classifications P, M, K, N, and S.

Installation Notes

This bit is installed by a machinist, maintenance technician, or qualified tradesperson using any drill press, hand drill, or CNC spindle with a compatible chuck. Secure the shank fully in the chuck before operation and verify chuck key is removed before starting the machine. Do not exceed the recommended drilling depth of 3.4375 inches for this bit. Use appropriate cutting fluid or coolant when drilling hard materials to extend tool life; note that this bit does not support coolant-through delivery.