Cleveland C16676 Cobalt Jobber Drill Bit 13/64 in

Product Description

The CLEVELAND C16676 is a cobalt jobber-length drill bit designed for high-performance drilling in hard and abrasive materials. Built to M42 cobalt steel grade, it carries a Titanium Nitride (TiN) coating that extends tool life and reduces heat buildup at the cutting edge. The 135-degree split point allows the bit to self-center on contact, reducing the need for a center punch on most surfaces. The parabolic flute geometry improves chip evacuation, which is critical when drilling deep holes in stainless steel, hardened alloys, or other tough workpiece materials. This is a heavy-duty, production-grade bit used by machinists, pipefitters, and maintenance mechanics in commercial and industrial settings.

This drill bit is suited for production drilling and maintenance repair operations where standard high-speed steel bits fail prematurely. The 13/64 inch diameter and 3-5/8 inch overall length place it in the standard jobber range, making it a practical fit for drill presses, hand drills, and magnetic drills used in fabrication, mechanical contracting, and industrial maintenance. The straight-cylindrical shank seats securely in standard three-jaw chucks. The web-thinned, tapered-web design reduces thrust requirements, which is especially useful when drilling by hand in tight spaces.

Key Features

• M42 cobalt steel construction handles heat and abrasion in hard alloys and stainless steel
• TiN coating reduces friction and extends cutting edge life
• 135-degree split point self-centers on contact, minimizing walking without a pilot hole
• Parabolic flute design promotes fast chip clearance and reduces clogging in deep-hole applications
• Web-thinned, tapered web lowers drilling thrust for easier hand-drill use
• Meets ASME B94.11M and DIN 338 standards

Compatibility

Designed as an OEM-style heavy-duty replacement or production-use drill bit for any application requiring a 13/64 inch diameter jobber-length bit with a straight-cylindrical shank compatible with standard three-jaw drill chucks.

Installation Notes

This bit is installed and operated by machinists, pipefitters, and mechanical contractors using standard drill presses, hand drills, or magnetic base drills. Secure the straight-cylindrical shank fully in the chuck before operation and verify chuck key is removed before powering the drill. Use appropriate cutting fluid or coolant when drilling stainless steel or hardened alloys to protect both the bit and workpiece. Inspect the cutting edge for wear or chipping before each use; a damaged split point will cause walking and reduce hole accuracy.