Cleveland C70067 Cobalt Jobber Drill Bit 2 Mm

Product Description

The CLEVELAND C70067 is a cobalt jobber length drill bit designed for high-performance drilling in demanding shop and field environments. Built from M42 cobalt high-speed steel, it carries a gold oxide coating that improves heat resistance and extends tool life in abrasive or work-hardening materials. The 2 mm diameter bit features a 135-degree split point that starts on contact without a center punch, reducing walking and improving hole location accuracy. With an overall length of 1.93 inches and a straight-cylindrical shank, it mounts directly into standard drill chucks. Licensed machinists, pipefitters, and metal fabricators working with aluminum and similar non-ferrous materials will find this bit a reliable production-duty choice.

The C70067 is suited for drilling aluminum and other soft to medium-hardness metals in both production and maintenance-repair-operations (MRO) settings. Its jobber length profile fits standard drill press chucks, hand drills, and CNC toolholders without adapters. The regular spiral flute geometry evacuates chips efficiently, making it appropriate for through-hole work in sheet stock, extrusions, and structural members. It conforms to NAS 907 Type J standards, making it acceptable on aerospace and defense assembly lines where specification compliance is required.

Key Features

• M42 cobalt steel construction provides hardness and heat resistance beyond standard HSS bits
• 135-degree split point eliminates the need for center-punching and reduces drill walk
• Gold oxide coating reduces friction and extends cutting edge life
• Web-thinned tapered web lowers thrust requirements and improves chip clearance
• Right-hand cut with regular spiral flute for positive chip evacuation
• Meets NAS 907 Type J specification for use in controlled manufacturing environments

Compatibility

Designed as a heavy-duty OEM-specification replacement or production-supply drill bit for applications requiring NAS 907 Type J compliance, with a 0.0787-inch straight-cylindrical shank compatible with standard drill chucks and collet holders sized for that shank diameter.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or trade professionals familiar with drilling operations. Secure the shank fully in the chuck and verify runout before drilling. Use appropriate cutting fluid or coolant when drilling metals to preserve edge life, even though this bit does not support internal coolant-through delivery. Follow shop safety protocols including eye protection and secure workpiece fixturing at all times.