Cleveland C70223 Cobalt Jobber Drill Bit 3.7mm

Product Description

The CLEVELAND C70223 is a cobalt M42 jobber length drill bit designed for precision drilling in metalworking and light industrial applications. The bit measures 3.7 mm (0.1457 inches) in diameter with an overall length of 2.76 inches and a flute length of 1.535 inches. A 135-degree split point reduces walking and allows drilling to begin without a center punch. The gold oxide coating aids in heat resistance and lubricity during cutting. This bit is suited for use by machinists, HVAC fabricators, electricians, and plumbers who drill through metal components in the field or shop.

The C70223 is built for right-hand spiral flute cutting in materials such as aluminum and similar non-ferrous metals, as noted by its NAS 907 Type J specification. The straight-cylindrical shank fits standard drill chucks across a wide range of portable and bench-mounted drills. Its heavy-duty M42 cobalt grade construction handles elevated cutting temperatures better than standard high-speed steel bits, making it a practical choice for repetitive drilling tasks in tough or abrasive stock. The web-thinned, tapered web configuration further reduces thrust requirements at the cutting edge.

Key Features

• M42 cobalt steel construction for improved heat and wear resistance over standard HSS bits
• 135-degree split point reduces drill walking and lowers required feed pressure
• Gold oxide coating provides lubricity and extends bit life during metal drilling
• Web-thinned tapered web reduces thrust at the cutting edge
• Straight-cylindrical shank fits standard drill chucks without adapters
• Meets NAS 907 Type J specification for dimensional and performance standards

Compatibility

Designed as an OEM-style replacement or direct substitute jobber drill bit for use in standard drill chucks accepting a 0.1457-inch straight-cylindrical shank, within the Series 2213 product line.

Installation Notes

Install this bit into a properly rated drill chuck and tighten securely before use. Disconnect or de-energize any power tool before changing bits. Use appropriate cutting fluid or lubricant when drilling aluminum or ferrous stock to extend bit life and improve hole quality. Wear appropriate eye protection in compliance with applicable shop safety requirements.