Cleveland C16525 Cobalt Jobber Drill Bit Wire 23

Product Description

The CLEVELAND C16525 is a cobalt jobber-length drill bit in wire gauge size 23, with a decimal diameter of 0.154 inches and an overall length of 3-1/8 inches. Manufactured from M42 cobalt high-speed steel with a gold oxide coating, it delivers elevated heat and wear resistance in demanding production environments. The 135-degree split point reduces thrust and self-centers on contact, eliminating the need for a center punch on most surfaces. The parabolic flute geometry clears chips efficiently, reducing heat buildup during deep-hole drilling. This bit is suited for machinists, maintenance technicians, and metalworking trades who need consistent performance in tough materials.

This drill bit is designed for drilling cast iron, non-ferrous metals, stainless steel, and carbon and alloy steels. The M42 cobalt grade makes it particularly well suited for interrupted cuts and abrasive alloys where standard HSS bits fail prematurely. With a straight-cylindrical shank diameter of 0.154 inches, it fits standard three-jaw chucks and drill press collets used in machine shop and field maintenance applications. It is sold individually and is appropriate for both production drilling and repair work where precision hole size and finish matter.

Key Features

• M42 cobalt steel construction provides high red-hardness for drilling stainless steel and hard alloys
• 135-degree split point self-centers and reduces entry thrust on hard materials
• Gold oxide coating improves lubricity and extends tool life in ferrous applications
• Parabolic flute design evacuates chips rapidly to reduce heat and prevent packing
• Web-thinned, tapered web configuration lowers cutting resistance on breakthrough
• Conforms to ASME B94.11M and DIN 338 standards for consistent dimensional accuracy

Compatibility

Designed for use in standard three-jaw drill chucks and collet systems accepting a 0.154-inch straight-cylindrical shank. Primary workpiece materials include cast iron, non-ferrous metals, stainless steel, and steel. Fits Cleveland Series 2075 tooling specifications.

Installation Notes

Installation is performed by machinists or maintenance technicians operating drill presses, CNC drilling centers, or hand-held power drills with appropriate chuck capacity. Secure the shank fully in the chuck and verify runout before beginning a cut. Use cutting fluid or coolant appropriate for the workpiece material when drilling stainless steel or hard alloys to maximize bit life. Inspect the cutting edges before each use and replace the bit if chipping or edge wear is visible.