Chicago-latrobe 42011 Jobber Drill Bit 11/64 in Hss Ticn

Product Description

The CHICAGO-LATROBE 42011 is a jobber-length twist drill bit engineered for heavy-duty drilling in steel and similar ferrous materials. Ground from M7 high speed steel and finished with a titanium carbonitride (TiCN) coating, this bit resists heat buildup and abrasive wear during sustained drilling cycles. The 135-degree split-point geometry with web thinning reduces thrust force and starts on contact without center-punching. At 3.25 inches overall length with a 2.125-inch flute length, it fits standard drill chucks and drill presses used in fabrication, maintenance, and mechanical trade work.

This bit is sized at 11/64 inch (0.1719 inch decimal) and belongs to the Series 150WLPN, a heavy-duty jobber series designed for production and job-site drilling in steel stock, structural members, and plate. The straight cylindrical shank seats directly into keyless or keyed chucks without an adapter. The parabolic flute profile improves chip evacuation and reduces clogging when drilling deeper holes in tough materials. Machinists, millwrights, pipefitters, and general maintenance technicians commonly use bits in this series for through-hole and blind-hole work in carbon and alloy steels.

Key Features

• M7 high speed steel construction rated for heavy-duty drilling in steel and ferrous alloys
• TiCN coating extends cutting edge life and reduces friction at the flute surface
• 135-degree notched split point starts on contact and reduces walking on flat surfaces
• Parabolic flute geometry promotes efficient chip clearance in deeper holes
• Web-thinned, tapered web design lowers required thrust and improves penetration rate
• Straight cylindrical shank fits standard drill chucks without modification

Compatibility

Designed as a jobber-length replacement drill bit for use with standard drill presses, hand drills, and magnetic base drills that accept a straight cylindrical shank in the 11/64 inch diameter range. Compatible with keyed and keyless chucks rated for that shank diameter.

Installation Notes

Insert the shank fully into the chuck and tighten securely before operation. Secure the workpiece before drilling to prevent rotation. Use appropriate cutting fluid or coolant when drilling hardened steels to extend bit life and manage heat. Follow applicable shop safety and OSHA general industry standards when operating drill presses or hand drills.