Cleveland C16621 Cobalt Jobber Drill Bit Wire Size 10

Product Description

The CLEVELAND C16621 is a cobalt jobber length drill bit designed for heavy-duty drilling in hard and abrasive materials. Built to Series 2075T standards, it carries a Titanium Nitride (TiN) coating that extends tool life by reducing friction and heat buildup at the cutting edge. The 135-degree split point promotes fast penetration and self-centering without a center punch. With a parabolic flute design and web-thinned, tapered web configuration, this bit clears chips efficiently during deep-hole drilling. It is suited for use by machinists, millwrights, maintenance technicians, and metal fabricators working with tough alloys and stainless steels.

The C16621 is intended for metal drilling applications in industrial, commercial, and heavy maintenance environments. Its M42 cobalt alloy construction makes it a common choice when drilling hardened steels, stainless steel, titanium, and other high-strength materials that wear out standard high-speed steel bits quickly. The straight-cylindrical shank fits standard three-jaw drill chucks on drill presses, hand drills, and CNC drilling setups. It conforms to ASME B94.11M and DIN 338 standards, making it compatible with precision drilling specifications common in manufacturing and fabrication shops.

Key Features

• M42 cobalt alloy construction for durability in hard and abrasive materials
• TiN coating reduces friction and extends cutting edge life
• 135-degree split point for self-centering and fast penetration
• Parabolic flute geometry improves chip evacuation in deep holes
• Web-thinned tapered web reduces thrust requirements at the drill tip
• Meets ASME B94.11M and DIN 338 standards

Compatibility

Designed as a heavy-duty OEM-style jobber length drill bit for use in standard three-jaw drill chucks accepting a 0.1935-inch straight-cylindrical shank, conforming to ASME B94.11M and DIN 338 specifications.

Installation Notes

This drill bit is installed by machinists and maintenance technicians using standard drill chucks on drill presses, hand drills, or CNC equipment. Secure the straight-cylindrical shank firmly in the chuck before operation to prevent slippage and tool damage. Apply appropriate cutting fluid for the material being drilled to manage heat and extend bit life. Inspect the cutting edge for wear before each use and replace the bit when the point shows signs of chipping or dullness.