Cleveland C01561 5/16 in Jobber Drill Bit Left Hand Hss

Product Description

The CLEVELAND C01561 is a jobber-length drill bit designed for general-purpose drilling in metal and non-ferrous materials. Built from high-speed steel with a bright, uncoated finish, this bit features a left-hand cutting direction and a standard 118-degree point angle with web thinning for easier starting and reduced thrust. The straight cylindrical shank measures 5/16 inches in diameter, and the overall length is 4.5 inches. Regular spiral flutes with a flute length of 3.1875 inches clear chips efficiently during operation. This bit is suited for machinists, maintenance techs, and trade professionals removing fasteners or drilling in reverse-rotation applications.

The C01561 is sized at 0.3125 inches in decimal diameter and falls within the 0.3000 to 0.3500 inch drill bit size range. Its left-hand cut makes it particularly effective for removing broken bolts, stripped screws, and seized fasteners from aluminum components and similar workpieces without damaging the surrounding material. It is part of the Cleveland Series 2006 lineup and conforms to ASME B94.11M standards. Sold individually per package.

Key Features

• Left-hand cutting direction ideal for extracting broken or stripped fasteners
• 118-degree standard point angle with web thinning for faster penetration and reduced walking
• High-speed steel construction rated for general-purpose metal drilling
• Bright uncoated finish; no added coating to affect dimensional tolerance
• Tapered web configuration with regular spiral flutes for efficient chip evacuation
• Meets ASME B94.11M dimensional standards; Specification Designation: ANSI

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with standard drill chucks and drilling equipment accepting a 5/16-inch straight cylindrical shank. Primary workpiece material is aluminum; suitable for general-purpose applications across non-ferrous and softer ferrous materials.

Installation Notes

Installation and use should be performed by qualified machinists or trade professionals familiar with drilling equipment and safe tooling practices. Always power down and secure the drill press or tool before changing bits. Verify chuck capacity and shank compatibility before seating the bit. Use appropriate cutting fluid or lubricant for the workpiece material to extend tool life and maintain dimensional accuracy.