Cleveland C15892 Jobber Length Drill Bit Wire 50 Cobalt

Product Description

The CLEVELAND C15892 is a jobber length twist drill bit designed for cutting superalloys and other hard materials in demanding shop and field applications. Built from M42 cobalt high-speed steel with an oxide coating, it carries a wire gauge size of 50, equivalent to 0.0700 inches in decimal. The 135-degree split point reduces walking and lowers thrust at entry, which matters when drilling into tough base metals. Overall length is 2 inches with an 11/16-inch flute length and a straight-cylindrical shank of 0.0700 inches in diameter. This is a heavy-duty grade bit for machinists, maintenance mechanics, and trade professionals working with superalloys or stainless.

The C15892 fits standard drill chucks and is suited for benchtop drill presses, hand drills, and CNC applications where a straight-cylindrical shank is appropriate. Its fast spiral flute promotes chip evacuation in deep or interrupted cuts. The web-thinned, tapered web geometry reduces cutting resistance without sacrificing rigidity. Typical uses include precision hole-making in superalloy components, aerospace maintenance work, and industrial fabrication where consistent diameter tolerance is required. Diameter tolerance is held to -0.0005 to 0.0000 inches, making it appropriate for close-tolerance fits.

Key Features

• M42 cobalt HSS construction for extended tool life in superalloys and hard metals
• 135-degree split point reduces entry thrust and eliminates center-punch requirement on most materials
• Oxide coating provides mild lubricity and corrosion resistance during cutting
• Fast spiral flute promotes aggressive chip evacuation in deep cuts
• Web-thinned tapered web lowers cutting resistance while maintaining bit strength
• Diameter tolerance of -0.0005 to 0.0000 inches supports close-tolerance hole requirements

Compatibility

Designed as an OEM-style jobber length drill bit conforming to ASME B94.11M and NAS specification designation, suitable for use in any standard drill chuck accepting a 0.0700-inch straight-cylindrical shank.

Installation Notes

Installation and use should be performed by qualified machinists or trade professionals familiar with cutting tool safety. Ensure the drill chuck is fully tightened and the workpiece is securely clamped before operation. Use appropriate cutting fluid or coolant when drilling superalloys to manage heat buildup, even though this bit does not support through-coolant delivery. Inspect the cutting edges before each use and replace the bit if chipping or wear is observed.