Cleveland C70254 7/64 in Hss Screw Machine Drill Bit

Product Description

The CLEVELAND C70254 is a screw machine length drill bit designed for high-production drilling in metalworking and fabrication environments. Built from high-speed steel with a bright uncoated finish, this bit features a 135-degree split point that reduces walking and allows drilling to start without a center punch on most surfaces. The web-thinned construction lowers cutting resistance and extends tool life during repetitive use. At 7/64 inch (0.1094 inch) diameter with a straight cylindrical shank of equal diameter, it is suited for use in drill presses, CNC machines, screw machines, and hand drill applications where shorter overall length improves rigidity and chip control.

The C70254 is built to Series 2330 specifications and conforms to ASME B94.11M and NAS 907 Type C standards. The stub-length body measures 1-13/16 inches overall with a 13/16-inch flute length and a 1-inch shank. This compact geometry reduces deflection, making it a reliable choice for tight-tolerance holes in alloy steel, aluminum, and similar materials. It is commonly used in production machine shops, HVAC fabrication, and plumbing rough-in where consistent, repeatable hole quality in metal components is required.

Key Features

• 135-degree split point reduces bit walking and lowers required feed pressure
• Web-thinned design decreases cutting resistance for faster penetration
• High-speed steel construction rated for heavy-duty drilling cycles
• Screw machine length body improves rigidity and minimizes deflection
• Bright uncoated finish compatible with cutting fluids and light oils
• Conforms to ASME B94.11M and NAS 907 Type C standards

Compatibility

Designed as an OEM-style screw machine length drill bit for use in standard straight-shank drill chucks on drill presses, CNC drilling centers, turret lathes, and hand drills where a 7/64-inch diameter hole in metal is required.

Installation Notes

Installation of this drill bit is performed by machinists and trade professionals using standard three-jaw drill chucks or collet holders. Ensure the chuck or collet is clean and the shank is fully seated before tightening. Use appropriate cutting fluid for the workpiece material to prolong bit life and maintain hole tolerance. Secure the workpiece firmly before drilling to prevent movement and tool breakage.