Precision Twist Drill 5999162 Jobber Drill Bit 37 Hss

Product Description

The PRECISION TWIST DRILL 5999162 is a jobber-length drill bit sized to wire gauge 37, equivalent to 0.1040 inches in diameter. Built from high-speed steel with a steam oxide coating, this bit features a 135-degree split point and a two-flute spiral configuration with a web-thinned, tapered web design. The overall length is 2.5 inches with a flute length of 1.4375 inches and a straight-cylindrical shank. It is rated for general-purpose heavy-duty drilling and meets ANSI and NAS 907 standards. Licensed tradespeople and toolroom machinists are the primary users of this bit in production and maintenance environments.

This bit is suited for drilling into steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and other hard materials. The 135-degree point reduces walking on entry and minimizes the need for a center punch on flat stock. It fits standard drill chucks accepting a 0.1040-inch straight-cylindrical shank and is appropriate for both handheld and machine-mounted drilling operations across light manufacturing, MRO, and fabrication settings.

Key Features

• Wire size 37 (0.1040 inches) straight-cylindrical shank for standard chuck compatibility
• 135-degree split point reduces bit walking and lowers thrust requirements on entry
• Steam oxide coating provides mild lubricity and corrosion resistance during storage and use
• Web-thinned tapered web improves chip evacuation and reduces heat buildup
• Two-flute regular spiral design rated for steel, stainless, cast iron, non-ferrous, superalloys, and titanium
• Meets ANSI standard and NAS 907 specification for dimensional and performance consistency

Compatibility

Designed as an OEM-style general-purpose jobber-length drill bit for use in any standard drill chuck or machine spindle accepting a 0.1040-inch straight-cylindrical shank. Listed under Series R10B, R15B, and R18B.

Installation Notes

Install in a properly rated drill press, CNC machine, or handheld drill with a chuck capable of gripping a 0.1040-inch shank securely. Ensure the workpiece is clamped or fixtured before drilling to prevent movement. Use appropriate cutting fluid when drilling stainless steel, superalloys, or titanium to manage heat and extend bit life. Inspect the cutting edges for chipping or wear before each use and replace if the point is damaged.