Chicago-latrobe 70106 No. 6 Hss Tin Drill Bit 118 Degree

Product Description

The CHICAGO-LATROBE 70106 is a jobber-length twist drill bit in wire gauge size No. 6 (0.2040 inches diameter), manufactured from high speed steel with a titanium nitride (TiN) coating. The TiN coating increases surface hardness and reduces friction, extending tool life in general-purpose metal drilling applications. The bit features a 118-degree standard point angle with web thinning for easier penetration and a tapered web configuration. With an overall length of 3.75 inches and a flute length of 2.5 inches, this bit is dimensioned to DIN 338 jobber-length standards. It is suited for use in hand drills, drill presses, and CNC setups requiring a straight-cylindrical shank.

The 70106 is designed for general-purpose drilling in cast iron and steel workpieces. The right-hand spiral flute geometry promotes efficient chip evacuation during through-hole and blind-hole operations. The straight-cylindrical shank at 0.2040 inches diameter (1.25 inches shank length) fits standard drill chucks without modification. This bit is part of the Chicago-Latrobe Series 150T, a line built for production and maintenance drilling in metal fabrication, mechanical, and industrial service environments. Licensed trades and maintenance technicians working in HVAC, plumbing, and electrical rough-in applications will find this size useful for conduit, bracket, and junction box drilling tasks.

Key Features

• Wire gauge No. 6 diameter: 0.2040 inches, conforming to DIN 338 jobber-length standard
• Titanium nitride (TiN) coating for increased wear resistance and reduced friction
• 118-degree standard point with web thinning for reduced thrust and easier starts
• Right-hand cut, regular spiral flute for efficient chip removal in ferrous materials
• Straight-cylindrical shank fits standard drill chucks without adapters
• Diameter tolerance held to -0.0007 to 0.0000 inches for consistent hole sizing

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with any standard drill chuck accepting a straight-cylindrical shank at 0.2040 inches diameter. Rated for use in cast iron and steel workpieces.

Installation Notes

This bit is installed and operated by machinists, maintenance technicians, and licensed tradespeople using hand drills, drill presses, or CNC drilling equipment. Secure the shank fully in the chuck and confirm chuck key is removed before powering the tool. Reduce feed rate when breaking through the far side of a workpiece to prevent grab and bit deflection. Coolant-through is not supported on this bit; use cutting fluid applied externally when drilling steel at sustained feed rates.