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The CLEVELAND C03155 is a jobber-length drill bit designed for general-purpose drilling in metal, aluminum, and similar materials. Built from high-speed steel with a bright, uncoated finish, this bit runs a standard 118-degree point angle and a fast-spiral, two-flute design that clears chips efficiently in non-ferrous and softer ferrous workpieces. The web-thinned, tapered-web geometry reduces the thrust needed to start a hole, improving feed consistency. The straight-cylindrical shank measures 7/16 inch in diameter, compatible with standard drill chucks. Manufactured to ASME B94.11M and ANSI specification, this bit suits maintenance, fabrication, and trade installation work.
The C03155 is sized at 7/16 inch (0.4375 inch decimal) with a 4-1/16 inch flute length and a 5-1/2 inch overall length. It is suited for use on drill presses, handheld power drills, and magnetic-base drills across residential and light commercial jobsite applications. Typical users include HVAC technicians, plumbers, electricians, and general contractors drilling clearance holes, conduit knock-outs, and bracket mounting holes through sheet metal, aluminum extrusions, and structural steel.
Designed as a general-purpose jobber-length drill bit within the 0.4000 to 0.5000 inch decimal inch size range, compatible with any standard drill chuck that accepts a straight-cylindrical 7/16 inch shank.
This drill bit is installed by trade professionals using standard drill chucks on corded or cordless power drills and drill presses. Secure the workpiece before drilling and ensure the chuck is fully tightened to prevent slippage. Use appropriate cutting fluid or lubricant when drilling ferrous materials to extend bit life. Always wear eye protection and follow applicable OSHA and site safety requirements when operating rotary cutting tools.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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