Chicago-latrobe 41680 Jobber Drill Bit Wire 10 Hss Tin

Product Description

The CHICAGO-LATROBE 41680 is a jobber-length drill bit designed for heavy-duty drilling in ferrous and hard metals. Built from high speed steel with a titanium nitride (TiN) coating, it delivers extended tool life and reduced heat buildup compared to uncoated HSS bits. The bit carries a wire gauge size of 10, equivalent to 0.1935 inches in decimal, and features a 135-degree split-point tip that starts on contact without a center punch. Overall length is 3.625 inches with a flute length of 2.4375 inches. Licensed HVAC techs, plumbers, pipefitters, and general tradespeople reach for this bit when drilling cast iron, stainless steel, and carbon steel in production or field applications.

This bit is suited for drilling cast iron, stainless steel, and steel in both shop and field environments. The straight-cylindrical shank seats securely in standard 3-jaw drill chucks and compatible quick-change systems. The regular spiral flute geometry and web-thinned, tapered web configuration improve chip evacuation and reduce axial thrust, making it practical for hand drills and drill presses alike. It ships individually and is rated to NAS 907 Type B standards, placing it in the heavy-duty performance tier for trade and industrial use.

Key Features

• Wire size 10 (0.1935 inches decimal) with a diameter tolerance of -0.0007 to 0.0000 inches for precise hole sizing
• 135-degree split-point tip starts drilling on contact, eliminating the need for a center punch on flat surfaces
• Titanium nitride (TiN) coating increases surface hardness and extends cutting life on ferrous materials
• Web-thinned, tapered web reduces thrust force and improves chip flow during drilling
• Right-hand cut, regular spiral flute geometry handles cast iron, stainless steel, and carbon steel
• Meets NAS 907 Type B standard, heavy-duty grade for demanding trade and industrial applications

Compatibility

Designed for use in standard 3-jaw drill chucks and compatible straight-shank toolholding systems. Primary workpiece materials include cast iron, stainless steel, and carbon steel as specified by the manufacturer.

Installation Notes

Installation and use should be performed by qualified tradespeople familiar with drilling equipment and cutting tool safety. Secure the straight-cylindrical shank fully in the chuck before operation and confirm the chuck key is removed prior to starting the drill. Use appropriate cutting fluid or coolant on stainless steel and hard alloys to manage heat; note that this bit does not support coolant-through operation. Inspect the cutting edges before each use and replace the bit if chipping or wear is observed to avoid workpiece damage or tool breakage.