Chicago-latrobe 41725 Drill Bit Wire Size 55 Hss Tin

Product Description

The CHICAGO-LATROBE 41725 is a jobber length drill bit in wire gauge size 55, measuring 0.0520 inches in diameter and 1.875 inches overall length. Built from high speed steel with a titanium nitride (TiN) coating, it is engineered for high-performance drilling in demanding trade and industrial applications. The 135-degree split point reduces walking and allows faster penetration without a center punch. A tapered web with web thinning reduces thrust requirements, making this bit well suited for production drilling and precision work where hole location and finish matter.

This bit is designed for drilling into cast iron, stainless steel, and steel. The 0.875-inch spiral flute length, regular spiral type, and right-hand cutting direction make it appropriate for use in drill presses, CNC equipment, and hand-held power drills on metal fabrication, maintenance, and mechanical assembly jobs. The Series 150ASP-TN is a recognized high-performance wire gauge drill line used in aerospace and general metalworking environments. It conforms to NAS 907 Type B standards, making it acceptable for applications where specification compliance is required.

Key Features

• Wire gauge size 55 with 0.0520-inch decimal diameter and tight tolerance of -0.0005 to 0.0000 inches
• 135-degree split point for reduced walking and lower thrust requirements
• Titanium nitride (TiN) coating extends tool life in ferrous metals
• Web-thinned, tapered web design reduces cutting resistance
• Straight-cylindrical shank at 0.0520 inches diameter and 1.0-inch shank length fits standard chucks
• Meets NAS 907 Type B specification for aerospace and precision metalworking use

Compatibility

Designed for drilling cast iron, stainless steel, and steel workpieces. Fits standard drill chucks accepting straight-cylindrical shanks in the 0.0500 to 0.1000-inch diameter range.

Installation Notes

Installation and use should be performed by machinists, maintenance technicians, or trade professionals familiar with metal drilling operations. Always secure the workpiece and ensure the drill chuck is fully tightened before operation. Confirm the spindle speed is appropriate for the workpiece material and drill diameter before beginning. Do not apply excessive lateral force on small-diameter bits, as wire gauge sizes are susceptible to breakage under side loading.