Chicago-latrobe 49715 Taper Length Drill Bit 15/64 in Hss

Product Description

The CHICAGO-LATROBE 49715 is a taper length, straight-shank drill bit designed for general-purpose hole-making in metal fabrication and machining applications. Ground from high speed steel with a coated finish, it features a 118-degree standard point angle and a web-thinned, tapered web configuration that reduces thrust and improves chip evacuation at the start of the cut. The bit measures 15/64 inch (0.2344 inches) in diameter with an overall length of 6.125 inches, providing extra reach compared to jobber-length bits without sacrificing rigidity. Right-hand spiral flutes carry chips out of the hole efficiently during continuous drilling.

This bit is rated for use in alloy steel, carbon steel, and cast iron, making it a practical choice for HVAC equipment fabrication, pipe fitting shops, electrical panel work, and general mechanical maintenance. The taper length format is commonly selected when standard jobber bits are too short for the application but extended-length bits introduce too much deflection. It fits any 15/64 inch straight-shank chuck on standard drill presses, hand drills, and mill spindles.

Key Features

• 15/64 inch (0.2344 inches) diameter with a diameter tolerance of +0.0000 to -0.0007 inches for consistent hole sizing
• 118-degree standard point angle with web thinning for reduced entry thrust
• High speed steel construction rated for alloy steel, carbon steel, and cast iron
• Coated finish for improved surface hardness and wear resistance
• Taper length body at 6.125 inches overall with a 3.75-inch flute length for extended reach
• Right-hand cut, regular spiral flutes with no coolant-through requirement

Compatibility

Designed as a general-purpose taper length drill bit compatible with alloy steel, carbon steel, and cast iron workpieces. Fits any standard straight-shank chuck accepting a 15/64 inch shank diameter.

Installation Notes

Secure the shank fully in the chuck before beginning any drilling operation and verify that the work piece is clamped or fixtured to prevent rotation. Use cutting fluid or a suitable lubricant when drilling steel to extend bit life and improve hole finish. Inspect the cutting edges for wear or chipping before each use; a dull or damaged drill bit increases thrust requirements and can fracture. Follow applicable shop safety standards and machine-guarding requirements for rotating tooling.