Chicago-latrobe 46622 Cobalt Jobber Drill Bit 11/32 in

Product Description

The CHICAGO-LATROBE 46622 is a cobalt jobber length drill bit designed for high-performance drilling in hard and abrasive materials. Built from M42 cobalt high-speed steel and finished with a gold oxide coating, this bit handles demanding applications where standard HSS tooling falls short. The 135-degree split point reduces walking and thrust on entry, allowing clean starts without a center punch on most surfaces. With a 0.3438-inch diameter, 4-3/4-inch overall length, and a right-hand spiral flute, this bit is suited for production and maintenance drilling in metal fabrication, aerospace, and mechanical contracting environments.

This drill bit is rated for use in titanium as its primary workpiece material and meets DIN 338 and NAS 907 Type J standards, making it appropriate for demanding aerospace and defense maintenance work as well as heavy industrial applications. The straight-cylindrical shank seats in standard drill chucks without modification. With a 3-7/16-inch flute length and tapered web design, it delivers efficient chip evacuation in deep-hole drilling passes. Licensed machinists, maintenance mechanics, pipefitters, and HVAC sheet metal technicians drilling through hard stock will find this bit a reliable daily driver.

Key Features

• M42 cobalt steel construction for heat resistance and extended tool life in hard metals
• 135-degree split point reduces thrust and eliminates walking on entry
• Gold oxide finish provides lubricity and corrosion resistance during cutting
• Web-thinned, tapered web design promotes efficient chip removal
• Meets DIN 338 and NAS 907 Type J standards for aerospace and industrial use
• Right-hand, regular spiral flute with 2-flute configuration

Compatibility

Designed for drilling titanium, stainless steel, heat-treated alloys, and other hard workpiece materials where cobalt-grade tooling is required. Fits any standard drill chuck accepting a 0.3438-inch straight-cylindrical shank.

Installation Notes

Install into a keyed or keyless drill chuck and tighten securely before operation. Use cutting fluid or coolant appropriate for the workpiece material to manage heat buildup, as cobalt bits retain heat that can transfer to the workpiece. Operate at manufacturer-recommended speeds and feeds for the material being drilled — excessive speed in hard metals shortens tool life. Ensure the workpiece is clamped firmly to prevent movement during drilling.