Chicago-latrobe 44750 Jobber Drill Bit Size 80 Hss Oxide

Product Description

The CHICAGO-LATROBE 44750 is a wire gauge size 80 jobber length drill bit designed for precision drilling in demanding trade and industrial applications. Built from high-speed steel with an oxide finish, this bit measures 0.0135 inches in diameter with a 0.75-inch overall length and features a 135-degree split point for accurate starting without center punching. The two-flute spiral design with a tapered, web-thinned web promotes chip evacuation and reduces walking on entry. It is suited for machinists, maintenance technicians, and fabrication professionals who require repeatable performance in small-diameter drilling operations.

The 44750 is engineered for use on cast iron, stainless steel, and steel workpieces. Its straight-cylindrical shank fits standard drill chucks, making it compatible with benchtop drill presses, hand drills, and CNC equipment. The regular spiral and right-hand cut configuration suit general-purpose through-hole and blind-hole drilling in manufacturing, MRO, and mechanical assembly environments. The Series 150ASP designation identifies this as a heavy-duty, high-performance product line within the CHICAGO-LATROBE catalog. Sold individually with a minimum order quantity of 12 units.

Key Features

• Wire gauge size 80 — 0.0135-inch diameter for fine-tolerance small-hole work
• 135-degree standard point angle with web thinning for self-centering entry
• High-speed steel construction with oxide coating for heat and wear resistance
• Two-flute regular spiral design promotes chip clearance in cast iron and steel
• Straight-cylindrical shank fits standard drill chucks without adapters
• Meets NAS 907 Type B specification — heavy-duty grade for high-performance applications

Compatibility

Designed for drilling cast iron, stainless steel, and steel workpieces. Compatible with standard drill chucks accepting a 0.0135-inch straight-cylindrical shank. Conforms to NAS 907 Type B specification.

Installation Notes

Installation and use should be performed by machinists or qualified technicians familiar with small-diameter drill bit handling. Secure the workpiece fully before drilling to prevent bit deflection or breakage at this diameter. Power down and de-energize all equipment before changing bits or adjusting chuck fixtures. At wire gauge sizes, excessive feed pressure or lateral force is the leading cause of bit failure — use consistent, controlled feed rates.