Precision Twist Drill 5999159 Jobber Drill Bit Wire 36

Product Description

The PRECISION TWIST DRILL 5999159 is a jobber-length drill bit in wire size 36 (0.1065 inches), designed for general-purpose drilling in a wide range of materials. Built from high speed steel with a steam oxide coating, this bit features a 135-degree split-point tip for fast, accurate starts with reduced walking on entry. The straight-cylindrical shank and regular spiral flute geometry make it compatible with standard drill chucks across most benchtop and handheld applications. With an overall length of 2.5 inches and a flute length of 1.4375 inches, it is suited for precision work in tight clearances. This bit is installed and used by machinists, maintenance technicians, and skilled tradespeople requiring reliable small-diameter drilling performance.

The 5999159 is intended for drilling into steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and other hard materials. Its web-thinned, tapered-web design reduces thrust requirements when penetrating tough workpieces. The 2-flute configuration and 13xD flute-to-diameter ratio support chip evacuation in deeper holes. Typical applications include fabrication, maintenance, and production drilling where wire-gauge sizes are required for tapping pilot holes, riveting, or precision fit work. This bit ships in single-piece packaging with a minimum order quantity of 12.

Key Features

• Wire size 36 diameter: 0.1065 inches for precision small-diameter drilling
• 135-degree standard split-point tip reduces walking and improves entry accuracy
• High speed steel construction with steam oxide coating for lubricity and corrosion resistance
• Web-thinned, tapered-web geometry lowers thrust when drilling hard materials
• Right-hand cut, regular spiral flute promotes efficient chip evacuation
• Meets ANSI and NAS 907 standards; series R10B-R15B-R18B

Compatibility

Designed as an OEM-style general purpose jobber-length drill bit suitable for use with standard straight-shank drill chucks in benchtop drill presses, CNC drilling operations, and handheld power tools; compatible workpiece materials include steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium.

Installation Notes

This bit is installed by machinists and maintenance technicians using standard 3-jaw or keyless drill chucks. Secure the shank fully in the chuck before operation and verify that the drilling surface is clamped or fixtured to prevent movement. Use appropriate cutting fluid or lubricant when drilling stainless steel, superalloys, or titanium to manage heat buildup. Do not exceed the maximum drilling depth of 1.4375 inches for this bit size.