Chicago-latrobe 70102 Jobber Drill Bit Wire 2 Hss Tin

Product Description

The CHICAGO-LATROBE 70102 is a jobber length drill bit from the Series 150T line, designed for general-purpose drilling in metal fabrication and maintenance applications. It is manufactured from high speed steel with a titanium nitride (TiN) coating that extends cutting life and reduces friction. The bit carries a wire gauge size of 2, equivalent to 0.2210 inches in decimal form, and measures 3.875 inches overall with a 2.625-inch flute length. The 118-degree standard point angle and web-thinned tip promote accurate starting and reduce thrust on entry. Licensed tradespeople and machinists working in production shops, mechanical rooms, and field service regularly reach for this size.

This drill bit is suited for drilling cast iron and steel in both light industrial and commercial settings. The straight cylindrical shank seats securely in standard keyless or keyed three-jaw chucks. The right-hand spiral flute evacuates chips efficiently during through-hole and blind-hole work. Its jobber length format balances reach and rigidity, making it a practical choice for hand-held drill motors, drill presses, and mill setups where a standard-length bit is called for.

Key Features

• Wire size 2 (0.2210 inches decimal) with a diameter tolerance of -0.0007 to 0.0000 inches for consistent hole sizing
• Titanium nitride (TiN) coating improves wear resistance and reduces heat buildup at the cutting edge
• 118-degree standard point with web thinning reduces centering force and improves chip clearance
• Two-flute right-hand spiral configuration clears chips effectively in steel and cast iron
• Tapered web and regular spiral type maintain strength through the full flute length
• Conforms to DIN 338 standards for jobber length geometry

Compatibility

Designed as a general-purpose jobber length drill bit suitable for use with standard three-jaw drill chucks accepting a 0.2210-inch straight cylindrical shank, compatible with hand-held drill motors, benchtop drill presses, and milling machine setups used in metalworking on cast iron and steel workpieces.

Installation Notes

Secure the straight cylindrical shank fully into the chuck before operation and verify concentricity before drilling. Always wear appropriate eye protection and secure the workpiece before beginning a cut. Use cutting fluid or coolant when drilling steel to manage heat and prolong cutting-edge life. Inspect the cutting edge for wear or chipping before reuse, particularly after drilling hardened or abrasive materials.