Cleveland C03158 Jobber Drill Bit 29/64 in Hss

Product Description

The CLEVELAND C03158 is a jobber-length drill bit designed for general-purpose drilling in a wide range of materials. Built from high speed steel (HSS) with a bright uncoated finish, this bit features a 118-degree standard point angle and a fast spiral flute configuration. It measures 29/64 inch in diameter with an overall length of 5-5/8 inches and a flute length of 4-3/16 inches. The straight-cylindrical shank ensures secure chuck retention in standard drill presses and handheld drills. Web-thinned construction reduces thrust and improves chip evacuation during cutting. This bit is suited for HVAC, plumbing, and general mechanical trades where accurate, repeatable hole placement is required.

The C03158 is rated for use on aluminum as its primary workpiece material and performs well across other non-ferrous metals and soft ferrous materials in general shop and field applications. With a right-hand cut and two-flute fast spiral design, it clears chips efficiently during through-hole and blind-hole drilling operations. The Series 2012 designation identifies it within the CLEVELAND standard jobber line, a widely stocked format in trade and industrial supply. Typical applications include sheet metal layout, fixture drilling, and component fabrication in mechanical contractor environments.

Key Features

• High speed steel construction for durability across general-purpose drilling tasks
• 118-degree standard point angle with web-thinned, tapered web for reduced entry thrust
• Fast spiral flute design promotes efficient chip removal in aluminum and similar materials
• Bright uncoated finish — no coating buildup to affect dimensional tolerance
• Diameter tolerance of -0.0010 to 0.0000 inches ensures consistent hole sizing
• Straight-cylindrical shank compatible with standard three-jaw chucks
• Conforms to ASME B94.11M standard

Compatibility

Designed as an OEM-style jobber-length drill bit for use in standard three-jaw drill chucks accepting a 29/64 inch straight-cylindrical shank. Suitable for use with benchtop drill presses, magnetic drills, and handheld power drills in trade and light industrial settings.

Installation Notes

Install this bit into a properly sized chuck and tighten securely before operation. Ensure the workpiece is clamped or fixtured to prevent movement during drilling. Use appropriate cutting fluid or lubricant when drilling aluminum or other non-ferrous metals to extend bit life and improve hole finish. Inspect the cutting edges before use and replace the bit if chipping or wear is evident.