Cleveland C14556 Screw Machine Drill Bit 39 Cobalt

Product Description

The CLEVELAND C14556 is a screw machine length drill bit designed for high-speed, short-hole drilling in demanding shop and field applications. Built from M42 cobalt high-speed steel, this bit handles tough workpiece materials including alloy steels and aluminum. It features a 135-degree split point that self-centers on contact, reducing walking and the need for a center punch. With a wire gauge size of 39 and a decimal diameter of 0.0995 inches, the C14556 is suited for precision hole work where tight tolerances are required. It is installed by machinists, maintenance technicians, and industrial trades professionals using standard drill presses, CNC machines, or hand drills.

The C14556 is designed for screw machine length drilling, which means a shorter overall length for increased rigidity and reduced deflection in high-cycle production environments. It suits applications involving alloy steel and aluminum workpieces where bit stability and heat resistance matter. The straight cylindrical shank fits standard drill chucks without adapters. This bit is built to ASME B94.11M and DIN 1897 specifications, confirming dimensional compliance for use in controlled manufacturing and maintenance settings.

Key Features

• M42 cobalt construction for heat and wear resistance in hard-material drilling
• 135-degree split point reduces thrust and self-centers without a pilot hole
• Web-thinned, parallel web design improves chip evacuation and cutting efficiency
• Screw machine length body increases rigidity and minimizes deflection
• Right-hand cut with regular spiral fluting for standard drill press and CNC use
• Diameter tolerance of +0.0000 to -0.0005 inches for consistent, precise holes

Compatibility

Designed as an OEM-style replacement or direct application bit compatible with standard straight-shank drill chucks accepting a 0.0995-inch shank diameter, suitable for drill presses, CNC drilling centers, and hand-held power drills used in metal fabrication and maintenance applications.

Installation Notes

This bit is installed by machinists and industrial maintenance technicians following standard drill press or CNC setup procedures. Secure the straight cylindrical shank fully in the chuck before operation, and confirm the workpiece is firmly clamped. Use appropriate cutting fluid for alloy steel workpieces to extend bit life and maintain hole quality. Inspect the split point for wear or chipping before each use, particularly in high-cycle production environments.