Chicago-latrobe 70111 Jobber Drill Bit No.11 Hss Tin

Product Description

The CHICAGO-LATROBE 70111 is a jobber-length twist drill bit from the Series 150T line, designed for general-purpose drilling in metal fabrication and maintenance applications. It carries a No. 11 wire gauge size with a decimal diameter of 0.1910 inches and an overall length of 3.5 inches. The bit is manufactured from high speed steel with a titanium nitride (TiN) coating that adds surface hardness and reduces friction at the cutting edge. A standard 118-degree split-point geometry with web thinning improves penetration and reduces walking on entry. The straight-cylindrical shank measures 0.1910 inches in diameter and seats securely in standard drill chucks and collets.

This drill bit is suited for drilling cast iron and steel in residential, commercial, and light industrial settings. Typical applications include HVAC bracket fabrication, conduit knockout work, pipe flange drilling, and general sheet metal or structural steel work where a reliable wire-gauge bit is needed. The 2-flute spiral flute configuration provides efficient chip evacuation during through-hole drilling. It conforms to DIN 338 standards, making it a straightforward drop-in for shops that specify metric-equivalent jobber-length tooling. Sold individually, it fits standard benchtop drill presses, hand drills, and drill motors used daily on commercial and residential job sites.

Key Features

• No. 11 wire size, 0.1910 inch decimal diameter with a tight tolerance of -0.0007 to 0.0000 inches
• High speed steel construction with titanium nitride coating for increased surface hardness and wear resistance
• 118-degree standard point angle with web thinning for reduced thrust and cleaner entry
• Right-hand cut, 2-flute regular spiral flute design for efficient chip removal
• Straight-cylindrical shank compatible with standard chucks and collets
• Conforms to DIN 338 jobber-length standard

Compatibility

Designed as a general-purpose jobber-length drill bit for use in standard 3-jaw drill chucks and collet systems that accept a 0.1910 inch straight shank. Primary workpiece materials are cast iron and steel per manufacturer specification.

Installation Notes

Installation is performed by machinists, fabricators, and trade professionals using a drill press, hand drill, or drill motor. Secure the shank fully in the chuck before operation and confirm chuck key is removed prior to starting the tool. No coolant-through capability is present on this bit, so apply cutting fluid externally when drilling steel to extend tool life and maintain dimensional accuracy. Follow applicable shop safety standards and wear appropriate eye protection during all drilling operations.