Cleveland C70167 Cobalt Jobber Drill Bit Size 34

Product Description

The CLEVELAND C70167 is a cobalt jobber-length drill bit in wire gauge size 34, with a decimal diameter of 0.1110 inches. Built from M42 cobalt high-speed steel, this bit carries a gold oxide coating and features a 135-degree split point for fast penetration and reduced walking on entry. The overall length is 2-5/8 inches with a 1-1/2-inch flute length, making it suited to close-tolerance drilling in production and maintenance environments. The straight-cylindrical shank seats securely in standard drill chucks. This is a heavy-duty grade bit intended for professional use by machinists, maintenance technicians, and metalworking tradespeople.

The C70167 is rated for aluminum as the primary workpiece material and is well suited to non-ferrous metals and softer alloys where a sharp, fast-cutting geometry is required. The 135-degree split-point tip reduces thrust force and centers itself without a center punch on flat stock. The regular spiral flute with web-thinned, tapered web construction promotes efficient chip evacuation during drilling. This bit meets NAS 907 Type J specifications, making it appropriate for aerospace and precision manufacturing applications where dimensional tolerances are tightly controlled.

Key Features

• M42 cobalt steel construction for heat and wear resistance in demanding drilling operations
• 135-degree split point reduces walking, lowers required thrust, and self-centers on entry
• Gold oxide coating provides lubricity and corrosion resistance during use
• Web-thinned tapered web improves chip flow and reduces heat buildup at the cutting tip
• Right-hand cut, regular spiral flute with straight-cylindrical shank for standard chuck compatibility
• Meets NAS 907 Type J specification for use in precision and aerospace-grade applications

Compatibility

Designed as an OEM-style replacement or direct-use jobber-length drill bit for any application requiring a wire gauge size 34 (0.1110 inches) drill in standard three-jaw or collet-style drill chucks. Suitable for use in drill presses, CNC machining centers, hand drills, and similar equipment accepting a straight-cylindrical shank.

Installation Notes

Install in a properly sized drill chuck and tighten securely before operation. Ensure the workpiece is clamped or fixtured to prevent movement during drilling. Coolant-through is not supported on this bit; use an appropriate cutting fluid applied externally when drilling metals to extend tool life and manage heat. Inspect the cutting edges for chipping or wear before each use and replace if the split point geometry is compromised.