Cle-line C23361 Cobalt Jobber Drill Bit 5/16 Inch

Product Description

The CLE-LINE C23361 is a cobalt jobber length drill bit designed for high-performance drilling in hard and abrasive materials. Built to Series 1802 standards and conforming to ASME B94.11M, this bit features a 135-degree split point that reduces walking and allows faster penetration without a center punch. The gold finish indicates the cobalt steel construction, which provides superior heat resistance compared to standard high-speed steel. At 4.5 inches overall length with a 3.1875-inch flute length, it suits a wide range of drilling applications on the bench or in the field. A licensed trades professional or machinist will find this bit ready for demanding production work.

The C23361 is suited for drilling aluminum, titanium, and superalloys where heat buildup and work hardening are common challenges. The web-thinned, tapered web construction reduces thrust requirements and extends bit life in tough materials. The straight cylindrical shank measures 5/16 inch in diameter, fitting standard three-jaw drill chucks. This bit is appropriate for both shop-floor CNC setups and handheld drill use in HVAC, mechanical, and fabrication applications where cobalt tooling is required.

Key Features

• Cobalt construction with gold finish for enhanced heat resistance in hard metals
• 135-degree split point reduces bit walking and lowers required thrust
• Web-thinned tapered web for reduced cutting resistance and longer service life
• Right-hand spiral flute with regular helix evacuates chips efficiently
• Straight cylindrical shank fits standard drill chucks without adapters
• Conforms to ASME B94.11M jobber length standards

Compatibility

Designed for drilling aluminum, superalloy, and titanium workpieces. Rated for primary workpiece material codes H, K, N, P, and S. Fits any standard drill chuck accepting a 5/16-inch straight cylindrical shank.

Installation Notes

This drill bit is intended for use by machinists, fabricators, and trade professionals familiar with metal drilling procedures. Secure the workpiece firmly before drilling and use appropriate cutting fluid for titanium and superalloy applications to manage heat. Inspect the bit for wear or chipping before each use, and do not exceed the rated cutting diameter for the chuck or machine in use. Dispose of worn tooling according to local shop safety guidelines.