Cleveland C14236 Cobalt Screw Machine Drill Bit 5/8 in

Product Description

The CLEVELAND C14236 is a cobalt screw machine length drill bit designed for high-performance drilling in tough materials. Built to M42 cobalt material grade, this bit features a 135-degree split point for fast, self-centering starts with reduced thrust. The parabolic flute geometry promotes efficient chip evacuation, while the web-thinned, parallel web configuration improves cutting efficiency at depth. At 4.25 inches overall length with a 2.75-inch flute length, it is sized for use in screw machine and turret lathe applications where stub-length control is critical. The straight-cylindrical shank measures 0.6250 inches in diameter and seats securely in standard chucks and tool holders. This is a right-hand cut bit intended for professional machinists and trade professionals working in production or maintenance environments.

This drill bit is engineered for drilling alloy steel and aluminum, making it a reliable choice in job shop, manufacturing, and MRO settings. The screw machine length profile offers rigidity and reduced deflection compared to jobber-length bits, which is especially valuable when drilling on turret lathes, drill presses, or CNC machining centers where hole location accuracy and cycle consistency matter. The cobalt construction resists heat buildup during extended runs in harder workpiece materials.

Key Features

• M42 cobalt construction for high heat resistance and extended tool life in alloy and aluminum materials
• 135-degree split point enables self-centering starts and reduces feed force
• Parabolic flute design promotes aggressive chip clearance and reduced clogging
• Web-thinned parallel web improves cutting efficiency and reduces thrust
• Screw machine length profile provides added rigidity and minimizes deflection
• Meets ASME B94.11M and ANSI specification standards
• Diameter tolerance of plus 0.0000 to minus 0.0012 inches for consistent hole sizing

Compatibility

Designed as an OEM-style screw machine length drill bit for use in standard drill chucks, collet holders, and turret lathe tool stations accepting a 0.6250-inch straight-cylindrical shank. Primary workpiece materials include alloy steel and aluminum.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or trade professionals familiar with machine tool operation. Secure the shank fully in the chuck or collet and verify runout before drilling. Always power down and de-energize the machine before changing tooling. Follow applicable shop safety standards and manufacturer feed-and-speed recommendations for cobalt tooling in the specific workpiece material.