Precision Twist Drill 5998428 Jobber Drill Bit Wire 45

Product Description

The PRECISION TWIST DRILL 5998428 is a jobber-length drill bit in wire gauge size 45 (0.0820 inches decimal), designed for general-purpose drilling in a wide range of materials. It is manufactured from high speed steel with a steam oxide coating that reduces friction and provides light corrosion resistance during storage and use. The bit features a 118-degree standard point angle, a regular spiral flute, and a straight-cylindrical shank at 0.0820 inches diameter. Overall length is 2.125 inches with a 1.125-inch flute length. This bit is installed by machinists, maintenance technicians, and metalworking tradespeople on drill presses, CNC machines, and handheld power drills.

This drill bit is suited for drilling steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium in both production and maintenance environments. Its jobber-length profile and straight-cylindrical shank make it compatible with standard drill chucks across bench-top and floor-standing drill presses as well as portable power tools. The Series R18 designation places it within the R10-R15-R18 family, a general-purpose line built to ANSI standards. Typical applications include through-hole and blind-hole drilling operations where a standard-point geometry and regular spiral are appropriate for the material and depth.

Key Features

• Wire gauge size 45, 0.0820 inches decimal diameter
• High speed steel construction with steam oxide coating for reduced friction
• 118-degree standard point angle for general-purpose entry in metal
• Regular spiral, 2-flute design with tapered web and web-thinned tip
• Straight-cylindrical shank fits standard drill chucks without adapters
• Built to ANSI specification, Series R10-R15-R18

Compatibility

Designed as a general-purpose jobber-length drill bit for use with standard drill chucks in drill presses, CNC drilling machines, and handheld power drills where a straight-cylindrical shank is required.

Installation Notes

Installation and use should be performed by qualified machinists or maintenance technicians familiar with drilling operations and associated equipment. Secure the shank fully in the chuck and verify concentricity before beginning a cut. Always power down and lock out the machine before changing bits. Apply cutting fluid appropriate to the workpiece material when drilling steel or stainless steel to extend tool life and maintain hole quality.