Chicago-latrobe 70114 Jobber Drill Bit Wire 14 Hss Tin

Product Description

The CHICAGO-LATROBE 70114 is a jobber length drill bit sized to wire gauge 14 (0.1820 inches decimal), manufactured from high speed steel with a titanium nitride (TiN) coating. It features a 118-degree standard point angle, a two-flute spiral configuration, and a web-thinned, tapered web design that reduces thrust and improves chip clearance. The straight-cylindrical shank measures 0.1820 inches in diameter and seats securely in standard drill chucks. Overall length is 3-3/8 inches with a flute length of 2-3/16 inches. This bit is built for general-purpose drilling and is suited for machinists, maintenance mechanics, electricians, and sheet metal tradespeople who need a reliable small-diameter HSS bit for daily production use.

The 70114 is designed for drilling into cast iron and steel, making it appropriate for both shop and field applications. Typical use cases include pilot hole drilling, wire-clearance holes, and precision small-diameter work in structural steel, cast iron housings, and similar ferrous materials. It is part of the Series 150T line and conforms to DIN 338 standards, which defines jobber length geometry and tolerances. This bit ships individually and is a direct fit for any standard drill chuck accepting straight-cylindrical shanks in the 0.1820-inch diameter range.

Key Features

• Wire gauge 14 sizing at 0.1820 inches decimal diameter with tight tolerance of -0.0007 to 0.0000 inches
• Titanium nitride (TiN) coating increases surface hardness and extends cutting life on ferrous materials
• 118-degree standard point angle for general-purpose entry and centering on flat and curved steel surfaces
• Web-thinned tapered web reduces axial thrust and improves chip evacuation in deep holes
• Right-hand spiral flute with regular helix angle suited for steel and cast iron drilling
• Conforms to DIN 338 jobber length standard for consistent geometry and interchangeability

Compatibility

Designed as a general-purpose replacement or stock jobber drill bit compatible with any standard drill chuck or drill press accepting 0.1820-inch straight-cylindrical shanks. Primary workpiece materials are cast iron and steel per Series 150T specifications.

Installation Notes

This bit is installed by a machinist, electrician, or general tradesperson using a handheld drill, drill press, or CNC drill setup with a standard three-jaw chuck. Secure the shank fully into the chuck and confirm concentricity before drilling to prevent bit deflection at small diameters. Do not apply coolant through the spindle, as this bit does not support through-coolant. Use appropriate cutting fluid applied externally when drilling ferrous metals to extend tool life and manage heat.