Precision Twist Drill 5999070 Wire 44 Jobber Drill Bit

Product Description

The PRECISION TWIST DRILL 5999070 is a jobber-length drill bit in wire gauge size 44, equivalent to 0.0860 inches in diameter. Made from high speed steel with a bright uncoated finish, it features a standard 118-degree split point and a regular spiral flute for efficient chip evacuation. The straight-cylindrical shank seats cleanly in standard keyless or keyed drill chucks. This is a general-purpose drilling tool intended for use by machinists, maintenance technicians, metalworkers, and trade professionals who need a reliable small-diameter bit for precision hole work in a range of materials.

This bit is suited for drilling in steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and other hard materials. It fits production and job-shop applications where consistent hole diameter and straight entry are required. The 2-flute spiral design and web-thinned point reduce thrust and improve centering without a pilot. Typical applications include tapping prep holes, through-hole drilling in sheet metal, and light machining work on a drill press or hand drill.

Key Features

• Wire gauge size 44 — 0.0860 inches diameter — for precision small-hole applications
• 118-degree standard point angle with web-thinned geometry for reduced thrust and accurate starting
• High speed steel construction handles a broad range of metals including stainless steel and superalloys
• Regular spiral, 2-flute design promotes chip clearance and consistent cutting action
• Bright uncoated finish maintains dimensional accuracy and suits general-purpose use
• Straight-cylindrical shank fits standard drill chucks without adapters

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with standard drill chucks accepting a 0.0860-inch straight-cylindrical shank. Part of the R10P, R15P, and R18P series from PRECISION TWIST DRILL.

Installation Notes

Installation is performed by machinists or maintenance technicians using a drill press, CNC machine, or hand drill. Secure the shank fully in the chuck before operation and confirm the chuck is tightened to prevent slippage. At small diameters, use appropriate feed rates and cutting speeds to avoid bit breakage — do not force the bit or apply excessive side load. Always wear appropriate eye protection when drilling.