Hertel 89323794 Taper Shank Drill Bit 1-29/32 in 5MT Hss

Product Description

The HERTEL 89323794 is a taper shank drill bit designed for high-torque, large-diameter drilling in metal and industrial materials. Built from high-speed steel with an oxide finish, it measures 1-29/32 inches (1.9063 inches decimal) in diameter and seats into a No. 5 Morse taper spindle. The 118-degree point angle suits general-purpose work in steel, cast iron, and similar ferrous materials. With a flute length of 10-3/8 inches and an overall length of 17-3/8 inches, this bit handles deep-hole applications that standard jobber-length drills cannot reach. It is a single-piece unit sold individually.

This bit is used in machine shop, fabrication, and maintenance environments where large-diameter holes must be drilled in a single pass. It mounts directly into drill press spindles, radial arm drills, milling machine quills, and boring mills equipped with a No. 5 Morse taper socket. General-purpose tool performance makes it a practical choice for production runs and maintenance drilling alike. Machinists, tool-and-die technicians, and industrial maintenance mechanics are the primary installers and operators of this tooling.

Key Features

• 1-29/32 inch (1.9063 inch) diameter for large-diameter single-pass drilling
• No. 5 Morse taper shank seats securely in compatible spindles without a separate chuck
• 118-degree point angle optimized for general-purpose drilling in ferrous metals
• High-speed steel construction resists heat and wear during heavy-duty cuts
• Oxide finish provides light corrosion resistance and reduces friction at the cutting edge
• 10-3/8 inch flute length supports deep-hole drilling applications

Compatibility

Designed for use in drill presses, radial arm drills, milling machines, and boring mills equipped with a No. 5 Morse taper (5MT) spindle or sleeve.

Installation Notes

Installation and operation should be performed by a qualified machinist or industrial maintenance technician familiar with large-diameter drilling procedures. Power down and lock out the machine before seating or removing the taper shank from the spindle. Ensure the taper socket is clean and free of chips before inserting the shank, as debris will prevent full seating and can cause the bit to spin or pull out under load. Use a proper drift and drift slot to eject the bit safely — never strike the spindle housing directly.