Hertel 89323349 Taper Shank Drill Bit 1-39/64 in 5MT Hss

Product Description

The HERTEL 89323349 is a taper shank drill bit designed for drilling large-diameter holes in metal, structural steel, and similar hard materials. Built from high-speed steel with an oxide finish, it carries a 118-degree point angle suited for general-purpose drilling across a wide range of ferrous metals. The 5MT (Morse Taper 5) shank seats directly into compatible taper-socket spindles on drill presses, lathes, and radial arm drills. With a 10-inch flute length and a 17-inch overall length, it handles deep-hole applications where shorter bits cannot reach. This bit is installed and used by machinists, tool-and-die workers, and heavy industrial maintenance technicians.

This drill bit is intended for production and maintenance drilling in industrial and commercial shop environments. Its 1-39/64-inch (1.6094-inch decimal) cutting diameter makes it appropriate for applications requiring precise large-bore holes in structural components, machine frames, or fabricated assemblies. The 5MT taper shank is a standard fitting on large floor-standing drill presses and lathe tailstocks commonly found in machine shops and fabrication facilities. General-purpose tool performance rating means it is suited for moderate feeds and speeds in a broad range of materials rather than specialized high-performance cutting programs.

Key Features

• 1-39/64 inch (1.6094 inch decimal) cutting diameter for large-bore drilling
• 5MT Morse Taper shank for direct mounting in taper-socket spindles without a chuck
• 118-degree point angle optimized for general-purpose drilling in ferrous metals
• High-speed steel construction provides heat resistance during prolonged cuts
• Oxide finish helps reduce friction and provides light corrosion protection
• 10-inch flute length and 17-inch overall length accommodate deep-hole applications

Compatibility

Designed for use in drill presses, lathes, and radial arm drills equipped with a No. 5 Morse Taper (5MT) spindle socket. Verify spindle taper size before installation.

Installation Notes

Installation requires a machine spindle with a No. 5 Morse Taper socket; the shank seats by firm hand pressure or a soft-faced mallet and is removed with a drift key through the spindle slot. Always power down and lock out the machine before seating or removing the bit. Secure the workpiece firmly with a vise or clamps rated for the drill diameter to prevent rotation during the cut. Follow applicable OSHA machine guarding and PPE requirements for large-diameter drilling operations.