Cleveland C70275 7/16 in Screw Machine Drill Bit Hss

Product Description

The CLEVELAND C70275 is a screw machine length drill bit designed for high-speed drilling in tight-clearance applications where a standard-length bit cannot fit. Built from high-speed steel with a bright, uncoated finish, this bit measures 7/16 inch (0.4375 inch) in diameter with a 3-7/16 inch overall length. The 135-degree split point reduces walking on entry and lowers thrust requirements compared to a conventional 118-degree point. The parallel web construction with web thinning improves chip evacuation and keeps cutting forces manageable. This bit is intended for installation by machinists, HVAC fabricators, plumbers, and electricians who drill in confined spaces or work with sheet metal, structural members, and mechanical assemblies.

The C70275 is suited for drilling alloy steel, aluminum, and similar workpiece materials in both production and field service environments. Its screw machine length body keeps the tool rigid and reduces deflection during drilling, making it a practical choice for CNC machines, drill presses, and hand-held power drills in trade and light manufacturing settings. The straight cylindrical shank fits standard drill chucks without adapters.

Key Features

• 135-degree split point reduces entry walking and lowers required thrust
• Web-thinned parallel web improves chip flow and reduces heat buildup
• Screw machine length (3-7/16 inch OAL) provides rigidity in confined drilling scenarios
• High-speed steel construction handles alloy steel and aluminum workpieces
• Right-hand spiral flutes with 2-flute configuration for efficient chip evacuation
• Meets ASME B94.11M and NAS 907 Type C standards

Compatibility

Designed as an OEM-style replacement or direct-use screw machine length drill bit for applications requiring a 7/16 inch diameter, straight cylindrical shank bit conforming to ASME B94.11M and NAS 907 Type C specifications.

Installation Notes

Install in a properly rated drill chuck that matches the 7/16 inch straight cylindrical shank diameter. Power down or de-energize all equipment before drilling into live panels or pressurized assemblies. Use appropriate cutting fluid for ferrous workpieces to extend tool life and reduce heat. Always wear eye protection and follow applicable OSHA and site safety requirements when operating drilling equipment.