Precision Twist Drill 5998339 Jobber Drill Bit No. 24

Product Description

The PRECISION TWIST DRILL 5998339 is a jobber-length twist drill bit in wire gauge size No. 24, with a decimal diameter of 0.1520 inches. It is made from high speed steel with a steam oxide coating that reduces friction and provides moderate corrosion resistance during drilling operations. The bit features a 118-degree standard point angle, a two-flute regular spiral configuration, and a web-thinned tapered web for improved chip evacuation. With an overall length of 3.125 inches and a flute length of 2 inches, it is suited for general-purpose drilling in production and maintenance environments. Licensed tradespeople and machinists install this bit in standard drill presses, hand drills, and CNC drilling setups.

This bit is designed for drilling into a wide range of workpiece materials, including steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and hard materials. It is classified under material codes P, M, K, N, and S, covering the broadest range of common shop and field drilling applications. The straight-cylindrical shank with a diameter of 0.1520 inches fits standard drill chucks without adapters. It is part of the Series R10-R15-R18 family, which is built to ANSI standards for jobber-length drill bits used in general-purpose drilling.

Key Features

• Wire gauge No. 24 diameter: 0.1520 inches for precise hole sizing in tight-tolerance applications
• 118-degree standard point angle suitable for steel, cast iron, and non-ferrous metals
• High speed steel construction with steam oxide coating for reduced friction and extended tool life
• Web-thinned tapered web improves penetration and chip evacuation
• Two-flute regular spiral with a 13xD flute-to-diameter ratio supports maximum drilling depth of 2 inches
• Straight-cylindrical shank fits standard drill chucks without modification
• Conforms to ANSI specification designation for jobber-length drill bits

Compatibility

Designed as an OEM-style general-purpose jobber-length drill bit conforming to ANSI standards, compatible with standard three-jaw drill chucks accepting a 0.1520-inch straight-cylindrical shank. Part of the PRECISION TWIST DRILL Series R10-R15-R18 product line.

Installation Notes

Installation is performed by machinists, maintenance technicians, or qualified tradespeople using standard drill press or hand-drill equipment. Always secure the workpiece and ensure the chuck is fully tightened before drilling. Power down and de-energize any equipment before changing bits. Do not exceed the maximum drilling depth of 2 inches for this bit length, and use appropriate cutting fluid when drilling into steel or stainless steel to manage heat buildup.