Cleveland C70197 Jobber Length Drill Bit Wire 64 Cobalt

Product Description

The CLEVELAND C70197 is a jobber-length twist drill bit designed for precision drilling in metalworking and fabrication applications. Built from M42 cobalt high-speed steel and finished with a gold oxide coating, it delivers extended tool life when cutting through hard and abrasive materials. The bit carries a wire gauge size of 64, equal to 0.0360 inches in decimal, and measures 1.5 inches overall length. The 135-degree split point reduces walking on entry and lowers thrust requirements. Two spiral flutes evacuate chips efficiently, and the straight-cylindrical shank seats reliably in standard drill chucks. This bit meets NAS 907 Type J specification and is graded heavy duty for demanding production use.

This drill bit is suited for drilling aluminum and similar non-ferrous and ferrous materials in production shop, aerospace fabrication, and general metalworking environments. The NAS 907 Type J standard makes it appropriate for applications where specification conformance is required. The 0.8750-inch shank length and 0.625-inch flute length are sized for work in tight clearances typical of wire-gauge drilling. Licensed machinists, tool and die makers, and sheet metal fabricators are the primary users of this product.

Key Features

• M42 cobalt steel construction for heat and wear resistance in hard-material drilling
• Gold oxide coating reduces friction and extends bit life
• 135-degree split point minimizes walking and reduces feed force
• Web-thinned tapered web for lower thrust and cleaner entry
• Right-hand spiral flute geometry promotes efficient chip evacuation
• Meets NAS 907 Type J specification for controlled-tolerance applications

Compatibility

Designed as a direct-fit replacement for wire gauge 64 jobber-length drill bits in standard drill chucks and collet-style holders accepting a 0.0360-inch straight-cylindrical shank, conforming to NAS 907 Type J requirements.

Installation Notes

Install in a properly sized drill chuck or collet rated for the shank diameter before operation. Secure the workpiece firmly to prevent movement during drilling. Always wear appropriate eye protection and follow applicable shop safety procedures when operating rotary cutting tools. Inspect the cutting edge and point condition before each use and replace if chipping or wear is evident.