Cleveland C14232 Cobalt Screw Machine Drill Bit 9/16 in

Product Description

The CLEVELAND C14232 is a cobalt screw machine length drill bit designed for high-performance drilling in demanding shop and field applications. Built to M42 cobalt material grade standards, this bit features a 135-degree split point for fast penetration and reduced walking on entry. The 9/16 inch diameter and compact 4 inch overall length make it well suited for confined-space drilling where a jobber-length bit would be impractical. With a parabolic flute geometry and web-thinned construction, it clears chips efficiently and maintains cutting speed through harder stock. Licensed trades and machining professionals working with alloy steel and aluminum will find this bit a reliable production-grade choice.

This bit is intended for use in alloy steel, aluminum, and similar workpiece materials. The screw machine length format is commonly specified for drill press, CNC, and turret lathe operations where stub-length rigidity reduces deflection and improves hole accuracy. The straight cylindrical shank accepts standard drill chucks without any adapter. The parabolic flute profile assists chip evacuation in deeper holes, and the parallel web configuration maintains edge strength through repeated sharpenings.

Key Features

• M42 cobalt construction for extended tool life in abrasive and work-hardening materials
• 135-degree split point reduces thrust force and self-centers on entry without a pilot hole
• Parabolic flute geometry promotes efficient chip evacuation in aluminum and alloy steel
• Web-thinned design lowers cutting resistance and heat buildup
• Screw machine length (4 inches OAL) delivers superior rigidity over jobber-length alternatives
• Diameter tolerance of +0.0000 to -0.0012 inches meets ASME B94.11M standards

Compatibility

Designed as a screw machine length replacement or production-use drill bit for applications in alloy steel and aluminum workpieces. Compatible with any drill chuck or collet that accepts a 0.5625 inch straight cylindrical shank.

Installation Notes

Install and remove this bit with the machine fully powered down and the spindle at a complete stop. Secure the straight cylindrical shank firmly in a properly sized chuck or collet before operation to prevent slippage under load. When drilling aluminum or alloy steel, use appropriate cutting fluid to manage heat and extend tool life. Inspect the cutting edges before each use and regrind or replace the bit when the split point or flute edges show signs of wear.