Cleveland C14207 Screw Machine Drill Bit 11/64 in Cobalt

Product Description

The CLEVELAND C14207 is a screw machine length cobalt drill bit designed for fast, accurate drilling in tough materials. Built to Series 2175 specifications, it features an 11/64 inch diameter (0.1719 inches decimal), a 135-degree split point for self-centering entry, and a parabolic flute geometry that clears chips efficiently at higher feed rates. The cobalt construction — M42 material grade — provides heat resistance and edge retention when drilling hard alloys, stainless-adjacent materials, and abrasive workpieces. Machinists, maintenance mechanics, and fabrication shops rely on this style of bit for production drilling applications where stub-length rigidity and cutting performance matter.

This drill bit is suited for use on drill presses, CNC machining centers, and hand-held electric drills in production and job-shop environments. Its screw machine length (shorter overall length than a jobber bit) reduces deflection and improves hole straightness in thick-stock applications. Primary workpiece materials listed by the manufacturer include alloy steels and aluminum. The straw oxide finish provides mild lubricity and corrosion resistance during storage and use.

Key Features

• M42 cobalt construction for heat resistance in hard-material drilling
• 135-degree split point self-centers on contact, reducing walking and pilot-hole requirements
• Parabolic flute profile with fast spiral promotes rapid chip evacuation
• Screw machine (stub) length improves rigidity and reduces deflection versus jobber length
• Web-thinned parallel web reduces thrust force at the cutting edge
• Straw oxide finish adds mild lubricity and corrosion protection
• Meets ASME B94.11M standards with ANSI specification designation

Compatibility

Designed as a heavy-duty OEM-style screw machine drill bit for use in standard straight-shank drill chucks. Primary workpiece materials specified by the manufacturer are alloy steels and aluminum.

Installation Notes

Installation is performed by machinists or maintenance mechanics using any drill chuck sized for a straight-cylindrical shank. Secure the shank fully in the chuck and verify concentricity before drilling. Use appropriate cutting fluid or coolant for the workpiece material when running at elevated speeds, as this bit does not support through-coolant delivery. Inspect the cutting edges before each use and replace or resharpen if chipping or excessive wear is present.