Cleveland C72158 Jobber Drill Bit Wire 58 0.0420 in Hss

Product Description

The CLEVELAND C72158 is a jobber-length twist drill bit sized to wire gauge 58, with a decimal diameter of 0.0420 inches. Manufactured from high speed steel with a bright, uncoated finish, this bit is designed for general-purpose drilling in light-gauge metal, plastics, and similar materials. It features a standard 118-degree point angle, a regular spiral flute, and a web-thinned, tapered web configuration that reduces thrust and aids chip clearing. Overall length is 1-5/8 inches with a flute length of 11/16 inches. The straight-cylindrical shank diameter matches the cutting diameter at 0.0420 inches, making it compatible with standard drill chucks. This bit is part of the Series 2002G line and conforms to ASME B94.11M and DIN 338 standards.

This bit is suited for machine shop, maintenance, and fabrication applications where wire-gauge-sized holes are required. It is commonly used with drill presses, CNC machines, and hand-held electric drills. The right-hand cutting direction and regular spiral flute make it a standard choice for production drilling and repair work across metalworking and industrial trades. At 0.0420 inches, it fills a specific need in close-tolerance hole sizing for small fasteners, pins, and precision assemblies.

Key Features

• Wire size 58 with 0.0420-inch decimal diameter for close-tolerance hole sizing
• 118-degree standard point angle suited for general-purpose drilling
• Web-thinned, tapered web reduces drilling thrust and improves chip evacuation
• High speed steel construction provides wear resistance across a range of workpiece materials
• Bright, uncoated finish for straightforward inspection and identification
• Conforms to ASME B94.11M and DIN 338 standards

Compatibility

Designed as a general-purpose jobber-length drill bit for use in standard drill chucks accommodating straight-cylindrical shanks at 0.0420 inches in diameter, suitable for drill presses, lathes, and handheld electric drills.

Installation Notes

Secure the straight-cylindrical shank firmly in the drill chuck before operation and verify concentricity to minimize runout. Power down and de-energize any machine before changing bits. Use appropriate cutting fluid or lubrication when drilling metals to extend bit life and maintain hole tolerance. Dispose of worn bits safely, as high speed steel tooling can retain sharp edges.