Precision Twist Drill 5999074 Jobber Drill Bit 16

Product Description

The PRECISION TWIST DRILL 5999074 is a jobber-length drill bit in wire gauge size 16, equivalent to 0.1770 inches in diameter. Manufactured from high-speed steel with a steam oxide coating, it features a 135-degree split-point tip and a web-thinned, tapered web construction that reduces walking and improves chip evacuation at the point. The spiral flute geometry and right-hand cut deliver consistent, repeatable hole quality in a wide range of metallic workpiece materials. This bit is sized for straight-cylindrical shank compatibility and is intended for use by machinists, maintenance technicians, and metalworking tradespeople who require a reliable general-purpose drill for precision hole-making tasks.

This drill bit is designed for general-purpose drilling applications in steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and other hard materials. The 0.1770-inch diameter and 3.375-inch overall length make it well suited for close-tolerance work in production and maintenance environments. The steam oxide coating provides mild lubricity and corrosion resistance during storage and light-duty cutting operations. It is sold individually and is appropriate for use in standard drill presses, CNC machining centers, and hand-held power drills equipped with compatible chucks.

Key Features

• Wire gauge size 16 at 0.1770 inches diameter for close-tolerance hole-making
• 135-degree split point reduces thrust and minimizes bit walk on hard surfaces
• Steam oxide coating provides mild lubricity and light corrosion resistance
• Web-thinned, tapered web construction improves chip clearance and cutting efficiency
• Heavy-duty grade high-speed steel construction rated for steel, stainless, cast iron, non-ferrous metals, superalloys, and titanium
• Conforms to ANSI standards and NAS 907 specification designation

Compatibility

Designed for use in drilling applications across steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium workpieces. Fits any drill press or power tool with a chuck capacity that accepts a 0.1770-inch straight-cylindrical shank. Part of the R10B-R15B-R18B series from PRECISION TWIST DRILL.

Installation Notes

Install in a properly rated drill press, hand drill, or CNC spindle with a chuck that accommodates a straight-cylindrical shank at 0.1770 inches. Secure the shank fully and verify chuck tightness before operation. Use appropriate cutting fluid or coolant when drilling stainless steel, superalloys, or titanium to manage heat buildup and extend tool life. Inspect the cutting edges for wear or chipping before each use and replace when point geometry is degraded.