Chicago-latrobe 49753 Taper Length Drill Bit 53/64 in Hss

Product Description

The CHICAGO-LATROBE 49753 is a taper length, straight-shank drill bit designed for general-purpose drilling in metalworking applications. Built from high speed steel with a coated finish, this bit measures 53/64 inch (0.8281 inches) in diameter with a 10-inch overall length and a 6.125-inch flute length. The 118-degree standard point angle and web-thinned, tapered web configuration reduce entry force and improve chip evacuation. Right-hand spiral flutes pull chips out of the hole efficiently. This bit is well-suited for professional machinists and metalworkers who need reliable, consistent results in production or maintenance environments.

The 49753 is intended for use on alloy steel, carbon steel, and cast iron workpieces. The taper length body provides added reach compared to jobber-length bits, making it useful in situations where standard-length bits cannot access the full depth of a workpiece. The straight shank accepts standard drill chucks without adapters, keeping setup time low. This is a Series 120 general-purpose bit appropriate for both manual and CNC drilling operations where moderate cutting speeds and standard coolant setups are used.

Key Features

• 53/64 inch (0.8281 inches) diameter with a tight tolerance of +0.0000 to -0.0012 inches
• High speed steel construction with coated finish for extended tool life
• 118-degree standard point with web thinning for reduced thrust and cleaner entry
• Taper length body at 10 inches OAL with 6.125-inch spiral flute length
• Straight shank (0.8281 inches diameter) fits standard drill chucks directly
• Right-hand cut, regular spiral flute for effective chip removal

Compatibility

Designed for drilling alloy steel, carbon steel, and cast iron. Compatible with any standard drill chuck or press accepting a 0.8281-inch straight shank. Series 120 general-purpose classification.

Installation Notes

This bit should be installed by a qualified machinist or tool operator using a properly rated drill press, lathe, or CNC machine. Secure the straight shank firmly in the chuck before operation and verify runout is within acceptable limits. Always use appropriate cutting fluid or coolant for the workpiece material when possible, and wear eye and face protection during drilling operations. Do not exceed the recommended RPM range for the bit diameter and material being drilled.