Precision Twist Drill 5999071 Jobber Drill Bit 15 Hss

Product Description

The PRECISION TWIST DRILL 5999071 is a jobber-length drill bit designed for general-purpose drilling in metal and hard materials. It measures 0.1800 inches in diameter, wire gauge size 15, with an overall length of 3.375 inches and a spiral flute length of 2.1875 inches. The bit is ground from high speed steel and finished with a steam oxide coating to reduce friction and extend service life. The 135-degree split point with web thinning reduces walking on contact and lowers thrust force, making it well suited for production drilling and field service work by machinists, maintenance technicians, and metal fabricators.

This drill bit is intended for use on a wide range of workpiece materials including steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. The 2-flute, right-hand spiral design clears chips efficiently in through-hole and blind-hole drilling applications. With a straight cylindrical shank diameter of 0.1800 inches, it seats directly in standard keyed or keyless drill chucks. It is appropriate for both handheld drill motors and bench or floor drill press setups in light industrial and field environments.

Key Features

• Wire gauge size 15 at 0.1800 inches diameter for precise hole sizing
• 135-degree split point with web thinning reduces walking and entry thrust
• Steam oxide coating lowers friction and helps resist heat buildup
• High speed steel construction rated for steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium
• 2-flute regular spiral design promotes efficient chip evacuation
• Straight cylindrical shank compatible with standard drill chucks
• Meets ANSI standards and NAS 907 specification

Compatibility

Designed as a general-purpose OEM-style jobber drill bit compatible with standard keyed and keyless drill chucks accepting a 0.1800-inch straight cylindrical shank. Part of the R10B, R15B, and R18B series from PRECISION TWIST DRILL.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or maintenance technicians familiar with rotating cutting tool safety. Secure the workpiece firmly before drilling and confirm the chuck is fully tightened before powering the machine. Do not exceed the recommended drilling depth of 2.1875 inches for this bit length. Wear appropriate eye protection and follow applicable shop safety procedures when working with high-speed rotating tools.