Cleveland C15907 Cobalt Jobber Drill Bit Wire 37 135 Deg

Product Description

The CLEVELAND C15907 is a cobalt jobber length drill bit designed for high-performance drilling in demanding materials. Built from M42 cobalt high-speed steel, it delivers superior heat and wear resistance compared to standard HSS tooling. The 135-degree split point reduces thrust and self-centers on the workpiece, eliminating the need for a center punch in most applications. At 2.5 inches overall length with a 0.1040-inch diameter, this is a wire gauge size 37 bit suited for precision hole work. The bright uncoated finish allows for easy visual inspection of wear. Licensed machinists, tool-and-die technicians, and maintenance professionals install and use this bit in bench drill presses, CNC machines, and hand-held drilling equipment.

This bit is rated for drilling superalloys, stainless steel, and other hard or abrasive materials where standard HSS bits fail prematurely. The spiral flute design clears chips efficiently during deep drilling operations, reducing heat buildup at the cutting edge. It conforms to ASME B94.11M dimensional standards, making it a direct fit in any ASME-compliant chuck or collet accepting a 0.1040-inch straight-cylindrical shank. Typical applications include aerospace component fabrication, industrial maintenance, and precision manufacturing environments where consistent hole size and finish are required.

Key Features

• M42 cobalt steel construction for heat resistance and extended tool life in hard materials
• 135-degree split point for reduced thrust and self-centering without a center punch
• Spiral flute design promotes efficient chip evacuation during drilling
• Right-hand cut, straight-cylindrical shank compatible with standard drill chucks and collets
• Bright uncoated finish allows visual inspection of cutting edge condition
• Conforms to ASME B94.11M standards for dimensional consistency

Compatibility

Designed as an OEM-style heavy-duty replacement or production drill bit for use in any standard drill chuck or collet accepting a 0.1040-inch straight-cylindrical shank, conforming to ASME B94.11M.

Installation Notes

Installation is performed by machinists or maintenance technicians using a standard keyed or keyless drill chuck rated for the shank diameter. Ensure the drill press or machine spindle is at a full stop and locked out before inserting or removing the bit. Use appropriate cutting fluid or coolant when drilling superalloys to prolong tool life and maintain hole tolerance. Inspect the cutting edges before each use and replace the bit if chipping or dulling is observed.