Hertel 89324255 Taper Shank Drill Bit 51/64 in 3MT Hss

Product Description

The HERTEL 89324255 is a taper shank drill bit designed for general-purpose drilling in metal, wood, and similar materials. Built from high-speed steel (HSS) with an oxide finish, it delivers consistent performance in production and maintenance environments. The bit measures 51/64 inch (0.7969 inch) in diameter, features a 118-degree point angle suited for a wide range of materials, and carries a No. 3 Morse taper (3MT) shank for secure seating in compatible spindles, tailstocks, and drill press quills. Machinists, tool-and-die workers, and maintenance technicians rely on this geometry for reliable chip evacuation and accurate hole entry.

This bit is intended for use in drill presses, lathes, milling machines, and other machine tools equipped with a No. 3 Morse taper socket. The 51/64-inch diameter is a common specification in general fabrication and industrial maintenance work. The oxide surface treatment provides a degree of corrosion resistance and reduces friction during cutting. With a flute length of 6.125 inches and an overall length of 10.75 inches, it accommodates adequate depth of cut in standard machine setups.

Key Features

• 51/64 inch (0.7969 inch) diameter for precise fractional sizing
• No. 3 Morse taper shank seats securely in 3MT spindles and tailstocks
• 118-degree point angle for general-purpose drilling across a broad material range
• High-speed steel construction maintains cutting edge integrity at elevated temperatures
• Oxide finish reduces friction and provides light corrosion resistance
• 6.125-inch flute length supports adequate chip clearance at depth

Compatibility

Designed as a general-purpose replacement or supplemental bit for machine tools fitted with a No. 3 Morse taper socket, including drill presses, lathes, and vertical mills.

Installation Notes

Installation is performed by machinists or qualified maintenance personnel. Clean the taper shank and receiving socket thoroughly before seating to ensure full contact and prevent slippage under load. Power down and lock out the machine before inserting or removing the bit. Use a proper drift punch and mallet against the tang to eject the bit safely — do not strike the cutting edges or flutes.