Cleveland C14275 Screw Machine Drill Bit 7/64 Cobalt

Product Description

The CLEVELAND C14275 is a screw machine length cobalt drill bit designed for high-performance drilling in demanding materials. Built to Series 2175 specifications, it carries a wire size of 35 (7/64 inch, 0.1100 inch decimal) and features a 135-degree split point with web thinning for fast penetration and reduced thrust. The parabolic flute geometry promotes efficient chip evacuation, making it well suited to production drilling where heat and chip buildup are common concerns. Cobalt construction provides elevated red-hardness compared to standard high-speed steel, allowing the bit to maintain its cutting edge at higher temperatures. Licensed trade machinists and maintenance technicians are the primary installers of this tooling.

This drill bit is engineered for use in alloy steels, aluminum, and similar materials where a heavy-duty cutting tool is required. The screw machine length body — with an overall length of 1.875 inches and a flute length of 0.875 inches — offers increased rigidity compared to jobber-length bits, making it a preferred choice for CNC machining centers, drill presses, and manual turret lathes where chatter and deflection must be minimized. Its straight-cylindrical shank and parallel web configuration are compatible with standard three-jaw chucks and quick-change toolholding systems commonly found in production and maintenance shop environments.

Key Features

• Wire size 35 (7/64 inch, 0.1100 inch) with a diameter tolerance of +0.0000 to -0.0005 inches for precise hole sizing
• 135-degree split point with web thinning reduces entry thrust and self-centers on contact
• Parabolic flute design improves chip flow and reduces heat buildup in deep-hole applications
• Cobalt (M42 material grade) construction retains hardness at elevated cutting temperatures
• Screw machine length body at 1.875 inches OAL provides rigidity and reduces deflection
• Meets ASME B94.11M standards for drill bit geometry and dimensional accuracy

Compatibility

Designed as an OEM-style screw machine length drill bit suitable for use in standard three-jaw chucks and quick-change toolholding systems on drill presses, CNC machining centers, and manual lathes where a straight-cylindrical shank bit is specified.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or maintenance technicians familiar with rotating cutting tool safety. Ensure the machine spindle is fully stopped and locked out before inserting or removing the bit from the chuck. Verify chuck jaw condition and proper torque on the chuck key before initiating a cut. Follow the machine manufacturer's recommended speeds and feeds for cobalt tooling in the workpiece material being drilled.