Chicago-latrobe 41610 5/32 Inch Hss Tin Drill Bit

Product Description

The CHICAGO-LATROBE 41610 is a heavy-duty jobber length drill bit designed for high-performance drilling in ferrous and hard metals. Built from high speed steel with a titanium nitride (TiN) coating, it delivers extended tool life and reduced friction compared to uncoated HSS bits. The 135-degree split point starts on contact without a center punch and reduces walking on hard surfaces. At 3.125 inches overall length with a 2-inch spiral flute, this bit fits standard drill chucks and is sized for everyday production and maintenance drilling tasks performed by machinists, millwrights, and mechanical contractors.

The 41610 is intended for drilling cast iron, stainless steel, and carbon steel in both shop and field environments. The straight-cylindrical shank seats securely in keyed or keyless chucks on hand drills, drill presses, and CNC equipment. The regular spiral flute geometry promotes efficient chip evacuation in through-hole and blind-hole applications. It conforms to NAS 907 Type B standards, making it appropriate for aerospace and precision manufacturing environments as well as general trade work.

Key Features

• 135-degree split point for self-starting entry on hard materials without center punching
• Titanium nitride (TiN) coating increases surface hardness and extends service life
• High speed steel construction handles cast iron, stainless steel, and carbon steel
• Web-thinned, tapered web design reduces thrust and improves chip flow
• Right-hand cut, regular spiral flute with 2-inch flute length for clean chip evacuation
• Meets NAS 907 Type B specification for precision and aerospace-grade work

Compatibility

Designed as a standard jobber length drill bit for use in keyed and keyless chucks accepting a straight-cylindrical shank; suitable for hand drills, drill presses, and compatible CNC spindles drilling cast iron, stainless steel, and steel workpieces.

Installation Notes

Secure the shank fully in the chuck and verify the bit runs true before engaging the workpiece. Use cutting fluid or coolant when drilling stainless steel or other work-hardening alloys to manage heat buildup. Reduce feed pressure near breakthrough to avoid grabbing and bit breakage. Inspect the cutting edges and TiN coating periodically; resharpen or replace when thrust increases noticeably or hole finish degrades.