Precision Twist Drill 5998342 Jobber Drill Bit 25 Hss

Product Description

The PRECISION TWIST DRILL 5998342 is a jobber-length twist drill bit sized to wire gauge 25, with a decimal diameter of 0.1495 inches. It is manufactured from high speed steel and finished with a steam oxide coating that reduces friction and provides light corrosion resistance during storage and use. The drill features a standard 118-degree split-point angle, a two-flute spiral configuration with a tapered web, and a straight cylindrical shank. With an overall length of 3 inches and a flute length of 1.875 inches, this bit is suited for general-purpose drilling operations in production and maintenance environments. Licensed tradespeople and machining professionals rely on this series for consistent, repeatable hole quality in a wide range of base materials.

The 5998342 is designed for drilling operations in steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and hard materials. It is a general-purpose bit appropriate for manual drill press work, CNC drilling cycles, and hand-held power tool applications where a standard jobber length is required. The Series R18 designation places it within PRECISION TWIST DRILL's R10-R15-R18 line. It is sold individually with a minimum order quantity of 12 units, making it practical for shop stock replenishment and tool-crib management.

Key Features

• Wire gauge 25 size, 0.1495 inches decimal diameter for precise hole sizing
• High speed steel construction with steam oxide coating for reduced friction and light corrosion protection
• 118-degree standard point angle with web-thinned, tapered web for improved chip evacuation
• Two-flute regular spiral geometry with a flute-to-diameter ratio of 13xD
• Straight cylindrical shank, 0.1495 inches diameter, compatible with standard drill chucks
• ANSI-standard specification for consistent dimensional accuracy
• Rated for use in steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium

Compatibility

Designed as a general-purpose OEM-style jobber drill bit for use in standard drill presses, CNC machines, and hand-held power tools that accept a straight cylindrical shank. Suitable for applications requiring a wire gauge 25 hole diameter in metalworking, fabrication, and maintenance contexts.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or tradespeople familiar with cutting tool safety. Secure the straight shank firmly in the chuck and verify runout before beginning a drilling cycle. Appropriate cutting fluid or coolant is recommended when drilling stainless steel, superalloys, or titanium to extend tool life. Always wear appropriate eye protection and follow facility safety protocols when operating drilling equipment.