Cleveland C70182 Cobalt Jobber Drill Bit No 49 135 Deg

Product Description

The CLEVELAND C70182 is a cobalt jobber length drill bit in wire gauge size No. 49, with a decimal diameter of 0.0730 inches. It is built to M42 cobalt steel specification, which delivers heat resistance and edge retention during high-speed drilling operations. The 135-degree split point reduces walking and allows faster penetration with less axial pressure. A gold oxide coating provides additional lubricity and corrosion protection. At 2 inches overall length with a 1-inch flute, this is a compact, heavy-duty bit suited for precision drilling tasks performed by machinists, maintenance technicians, and HVAC or electrical tradespeople working with small-diameter hole requirements.

The C70182 is designed for drilling aluminum as its primary workpiece material, though its M42 cobalt construction also handles other non-ferrous and ferrous materials commonly encountered in trade applications. The regular spiral flute and straight-cylindrical shank make it compatible with standard drill chucks and hand-held power drills used in shop and field settings. It is packaged as a single unit and is well suited for controlled-entry drilling in tight spaces or thin-stock applications where a standard jobber length is appropriate.

Key Features

• M42 cobalt steel construction for high heat resistance and extended tool life
• 135-degree split point reduces drill walking and lowers required feed force
• Gold oxide coating improves lubricity and reduces friction during cutting
• Web-thinned, tapered web design for improved chip evacuation
• Right-hand cut with regular spiral flute for standard drilling applications
• Meets NAS 907 Type J specification for dimensional and performance compliance

Compatibility

Designed as a jobber length replacement drill bit for use in standard straight-shank drill chucks across portable and bench-mounted drilling equipment where a No. 49 wire gauge diameter is required.

Installation Notes

This drill bit is installed by machinists and trade professionals using standard drill chucks; confirm chuck capacity accommodates a 0.0730-inch shank before use. Secure the workpiece before drilling to prevent movement, particularly when working with thin aluminum stock. Do not exceed the rated speed range for cobalt bits in the material being drilled, and use cutting fluid when appropriate to extend tool life. This bit does not support coolant-through delivery.