Cleveland C08840 Taper Length Drill Bit 33/64 in Hss

Product Description

The CLEVELAND C08840 is a taper length, high-speed steel drill bit designed for general-purpose drilling in metalworking and fabrication applications. It features a 33/64 inch (0.5156 inch) diameter with a standard 118-degree point angle and a spiral, right-hand cutting flute. The web-thinned, tapered web configuration reduces thrust and improves chip evacuation. With an overall length of 8 inches and a 4-3/4 inch flute length, this bit provides greater reach than a jobber-length drill while maintaining rigidity. It is suited for machinists, maintenance technicians, pipefitters, and industrial tradespeople who need reliable hole-making performance in ferrous and cast materials.

This drill bit is suited for drilling alloy steel, carbon steel, and cast iron in both shop and field environments. The straight shank with a diameter of 0.5156 inch fits standard three-jaw drill chucks without adapters. The taper length body allows drilling into deeper workpieces or through thicker material cross-sections where a jobber-length bit would fall short. It conforms to ASME B94.11M and DIN 340 standards, making it appropriate for work environments that require documented tooling compliance.

Key Features

• 33/64 inch (0.5156 inch) cutting diameter with a tolerance of +0.0000 to -0.0012 inch
• 118-degree standard point angle for general-purpose entry into steel and cast iron
• Web-thinned, tapered web reduces cutting thrust and improves chip flow
• 4-3/4 inch flute length and 8 inch overall length provide extended reach
• Right-hand spiral flute with straight shank for use in standard drill chucks
• Meets ASME B94.11M and DIN 340 dimensional standards

Compatibility

Designed for general-purpose drilling in alloy steel, carbon steel, and cast iron. Fits standard three-jaw drill chucks accepting a straight shank diameter of 0.5156 inch.

Installation Notes

This bit is installed by machinists or maintenance tradespeople using a standard drill press, milling machine, or hand-held drill with a compatible chuck. Secure the shank fully in the chuck and confirm concentricity before drilling. Use appropriate cutting fluid when drilling alloy steel or cast iron to extend tool life and manage heat. Inspect the cutting edges for wear before each use and replace the bit if the point shows chipping or deformation.