Precision Twist Drill 5999035 Jobber Drill Bit No. 7

Product Description

The PRECISION TWIST DRILL 5999035 is a wire-gauge No. 7 jobber-length drill bit sized at 0.2010 inches in diameter. Built from high speed steel with a steam oxide coating, it is designed for general-purpose drilling in demanding trade and industrial environments. The bit features a standard 118-degree split-point angle, a regular spiral flute geometry, and a web-thinned, tapered web configuration that reduces thrust and improves chip evacuation. Overall length is 3.625 inches with a 2-7/16 inch flute length. Right-hand cut and straight-cylindrical shank make it compatible with standard drill chucks. This bit is suited for machinists, pipefitters, maintenance technicians, and fabricators who require consistent, repeatable hole quality.

This jobber-length bit is rated for drilling into steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and hard materials. The steam oxide finish provides light lubricity and corrosion resistance during storage and use. The 12xD flute-to-diameter ratio gives adequate chip clearance for through-holes in typical metal stock. It is sold individually and is appropriate for both production drilling and field repair work across HVAC, plumbing, electrical, and general metal fabrication applications.

Key Features

• Wire gauge No. 7 diameter — 0.2010 inches for precise hole sizing
• High speed steel construction for durability in ferrous and non-ferrous materials
• Steam oxide coating provides light lubricity and corrosion resistance
• 118-degree standard point angle for general-purpose drilling
• Web-thinned, tapered web reduces drilling thrust and improves chip flow
• Right-hand cut with straight-cylindrical shank fits standard drill chucks
• Meets ANSI standards and NAS 907 specification

Compatibility

Designed for use in standard 3-jaw drill chucks accepting a 0.2010-inch straight-cylindrical shank. Rated for drilling steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium per workpiece material codes P, M, K, N, and S. Part of the R10A, R15A, and R18A series.

Installation Notes

Install in a properly rated drill press, hand drill, or CNC spindle with a chuck capacity matching the 0.2010-inch shank diameter. Ensure the workpiece is securely fixtured before drilling to prevent bit deflection or breakage. Apply appropriate cutting fluid when drilling stainless steel, titanium, or superalloys to extend bit life and maintain hole tolerances. Inspect the cutting edges before use and replace any bit showing chipping or excessive wear.