Cleveland C03000 Jobber Drill Bit Wire 28 0.1405 in Hss

Product Description

The CLEVELAND C03000 is a jobber-length twist drill bit sized to wire gauge 28, with a decimal diameter of 0.1405 inches. Built from high speed steel (HSS) with a bright finish, it is designed for general-purpose drilling in metal, wood, and plastic. The 118-degree standard point angle provides a versatile cutting geometry suited to a wide range of workpiece materials. With a straight-cylindrical shank and a fast spiral flute, the bit seats securely in standard drill chucks and clears chips efficiently during operation. Machinists, maintenance technicians, electricians, and HVAC fabricators commonly reach for wire-gauge bits like this one when drilling precise, small-diameter holes in sheet metal or enclosures.

This bit fits general-purpose production and maintenance drilling applications where a wire size 28 (0.1405 inch) hole is required. It is appropriate for use in hand-held power drills, drill presses, and CNC equipment with a standard straight-shank collet or chuck. The 2-7/8 inch overall length and 1-3/4 inch flute length make it well suited for through-hole work in light-gauge materials. The web-thinned, tapered web configuration reduces thrust force at the cutting tip, which is useful when drilling thinner stock without walking.

Key Features

• Wire size 28 diameter (0.1405 inches) with a tight tolerance of -0.0007 to 0.0000 inches for accurate hole sizing
• 118-degree standard point angle for versatile general-purpose use across metals, plastics, and wood
• High speed steel construction provides toughness and heat resistance for everyday drilling tasks
• Bright finish with no coating buildup, preserving dimensional accuracy near the cutting edge
• Fast spiral flute promotes efficient chip evacuation, reducing heat and clogging in deep cuts
• Web-thinned tapered web lowers required thrust and helps center the bit on entry

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with any standard drill chuck or collet accepting a 0.1405-inch straight-cylindrical shank, including 3/8-inch and 1/2-inch keyed and keyless chucks commonly used in hand drills, drill presses, and light CNC setups.

Installation Notes

Secure the straight-cylindrical shank fully in the chuck before drilling and confirm the bit runs true before engaging the workpiece. Secure all workpieces firmly in a vise or fixture to prevent movement during drilling. Use cutting fluid or a light lubricant when drilling ferrous metals to extend bit life and maintain dimensional accuracy. Replace or resharpen the bit if thrust force increases noticeably or if the exit hole quality degrades, as a dull edge accelerates heat buildup and can cause bit breakage in small diameters.