Precision Twist Drill 5998373 No. 33 Hss Jobber Drill Bit

Product Description

The PRECISION TWIST DRILL 5998373 is a jobber-length twist drill bit in wire gauge size No. 33, equivalent to 0.1130 inches in diameter. Built from high speed steel with a steam oxide coating, it is designed for general-purpose drilling in a wide range of materials. The 118-degree standard point angle suits most common drilling applications. The bit features a right-hand spiral flute with a web-thinned, tapered web configuration for improved chip evacuation and reduced thrust at entry. Overall length is 2.625 inches with a 1.5-inch flute length. It is typically installed by machinists, maintenance technicians, and general trade professionals working in shop or field environments.

This drill bit is suited for use on steel, stainless steel, cast iron, non-ferrous metal, superalloys, titanium, and hard materials. It fits standard drill chucks that accept a straight cylindrical shank of 0.1130 inches in diameter. The R18 series designation places it within the PRECISION TWIST DRILL R10-R15-R18 family of jobber-length bits. It is an ANSI-compliant, general-purpose bit appropriate for production drilling, maintenance repair, and fabrication work across light industrial and trade settings.

Key Features

• Wire gauge No. 33 size with 0.1130-inch decimal equivalent diameter
• High speed steel construction with steam oxide coating for corrosion resistance and reduced friction
• 118-degree standard point angle with web-thinned, tapered web for reduced entry thrust
• Right-hand spiral flute with regular helix for efficient chip removal
• Straight cylindrical shank fits standard keyless and keyed drill chucks
• ANSI-compliant general-purpose grade suitable for steel, cast iron, non-ferrous metals, and superalloys

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with any standard drill chuck accepting a 0.1130-inch straight cylindrical shank. Suitable for use in benchtop drill presses, hand drills, and CNC drilling operations across the material types listed in the specifications.

Installation Notes

Secure the shank fully in the drill chuck before operation and verify chuck is tightened to prevent slippage. Power down or de-energize any machine tool before inserting or removing the bit. Use appropriate cutting fluid or coolant when drilling stainless steel, superalloys, or titanium to extend tool life and maintain hole quality. Inspect the cutting edges for wear or chipping before each use and replace if the point is degraded.