Cleveland C14675 Screw Machine Drill Bit 5/16 in Cobalt

Product Description

The CLEVELAND C14675 is a screw machine length drill bit designed for high-performance drilling in tough materials. Built from M42 cobalt high-speed steel, this bit handles alloy steels, aluminum, and other demanding workpiece materials where standard HSS tooling falls short. The 135-degree split point reduces walking and lowers thrust at entry, allowing cleaner starts without a center punch in most applications. At 2-13/16 inches overall length and 5/16 inch diameter, this stub-length geometry increases rigidity and reduces deflection compared to jobber-length bits, making it a go-to for production drilling and close-tolerance work.

This drill bit is suited for use in CNC machining centers, drill presses, and handheld power tools where a short, stiff bit is required to hold position. Primary workpiece materials include alloy steel and aluminum. The straight-cylindrical shank seats securely in standard drill chucks and collets. The 1-5/8 inch flute length handles typical through-hole and blind-hole applications in the screw machine length range. Metalworkers, machinists, and fabricators working in production or repair environments will find this bit appropriate for repetitive, high-cycle drilling tasks.

Key Features

• M42 cobalt construction for extended tool life in alloy steel and aluminum
• 135-degree split point reduces thrust and eliminates walking at entry
• Screw machine (stub) length increases rigidity and reduces deflection
• Web-thinned parallel web lowers cutting resistance and improves chip evacuation
• Right-hand cut with regular spiral and 2 flutes for standard drilling applications
• Meets ASME B94.11M and DIN 1897 standards

Compatibility

Designed as a direct-fit replacement or standard tooling choice for any drill chuck or collet accepting a 5/16 inch straight-cylindrical shank. Suitable for use in CNC equipment, drill presses, and hand drills where screw machine length bits are specified.

Installation Notes

Install and remove drill bits only with the tool powered off and unplugged or locked out per applicable safety procedures. Seat the straight-cylindrical shank fully in the chuck or collet and tighten securely before operation. Use appropriate cutting fluid when drilling alloy steel to extend tool life and manage heat buildup. Inspect the cutting edges and point for wear before each use; a dull or chipped point increases thrust and reduces hole quality.