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The CHICAGO-LATROBE 44343 is a jobber-length drill bit designed for general-purpose drilling in non-ferrous metals and similar materials. Built from high-speed steel (HSS) with a bright, uncoated finish, it carries a 118-degree standard point angle and a web-thinned, tapered web configuration that reduces entry force and improves chip clearance. The straight-cylindrical shank fits standard drill chucks without modification. At 1 inch overall length with a 0.25-inch flute length, this bit is sized for compact, precise work. It conforms to DIN 338 standards and is part of the 150D Series, a line geared toward consistent performance in production and maintenance drilling environments.
This bit is suited for drilling non-ferrous metals, plastics, and similar workpiece materials in maintenance, manufacturing, and trade-service applications. The wire gauge sizing, designated as Wire Size 73 (0.0240 inches decimal), makes it a common choice when tapping smaller-diameter threads or when precise undersized holes are required. HVAC, electrical, and plumbing contractors working with sheet metal, copper tubing flanges, or light-gauge components will find this size useful for pilot holes and tapping operations. It is sold individually, with a minimum order quantity of 12 units.
Designed as a general-purpose jobber-length drill bit compatible with any standard drill chuck accepting a straight-cylindrical shank, suited for non-ferrous metal and similar workpiece materials.
Installation is performed by machinists, maintenance technicians, and trade professionals using standard drill presses, hand drills, or CNC equipment. Secure the straight-cylindrical shank firmly in the chuck before operation. At this small diameter, use appropriate feed rates and cutting speeds for the workpiece material to avoid bit deflection or breakage. Ensure the workpiece is clamped securely to prevent movement during drilling.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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