Chicago-latrobe 50407 Taper Length Drill Bit 0.2610 in Hss

Product Description

The CHICAGO-LATROBE 50407 is a taper length, straight-shank drill bit designed for general-purpose drilling in ferrous metals. It carries a 0.2610-inch diameter (Letter G) with a standard 118-degree point angle and a coated high speed steel body. The taper length format provides extra reach compared to jobber-length bits, making it useful when drilling deeper holes or working in tight fixtures. Web-thinned geometry reduces thrust load at the cutting tip. Right-hand spiral flutes clear chips efficiently throughout the cut. This bit is intended for use by machinists, maintenance technicians, and metal fabricators working in production or job-shop environments.

The 50407 is suited for drilling alloy steel, carbon steel, and cast iron in both manual and machine spindle applications. The straight shank fits standard drill chucks without adapters. With a 3-7/8-inch flute length and 6-1/4-inch overall length, it handles deeper-than-standard hole depths that a jobber-length bit cannot reach. Series 120 from CHICAGO-LATROBE is positioned as a general-purpose line, making this an appropriate choice for repetitive production drilling as well as maintenance and repair work where consistent hole quality is required.

Key Features

• Letter G size: 0.2610-inch diameter with a tight tolerance of +0.0000 to -0.0010 inches
• 118-degree standard point angle with web-thinned, tapered web configuration for reduced thrust
• High speed steel construction with coating for improved wear resistance
• Taper length body: 3-7/8-inch flute length and 6-1/4-inch overall length for deeper reach
• Right-hand cut, regular spiral flutes for efficient chip evacuation
• Straight shank at 0.2610 inches diameter fits standard chucks directly

Compatibility

Rated for use in alloy steel, carbon steel, and cast iron. Designed for general-purpose drilling applications in standard drill presses, milling machines, and hand-held drill chucks that accept a 0.2610-inch straight shank.

Installation Notes

Install in a properly sized drill chuck and tighten securely before operation. Ensure the workpiece is clamped or fixtured to prevent rotation during drilling. Use appropriate cutting fluid or coolant when drilling ferrous metals to extend tool life, noting that this bit does not support through-coolant delivery. Inspect the cutting edges for wear or chipping before each use and replace when edge condition degrades to maintain hole tolerance.