Hertel 89322929 Taper Shank Drill Bit 2-1/8 in 5MT Hss

Product Description

The HERTEL 89322929 is a taper shank drill bit engineered for heavy-duty drilling applications requiring a large-diameter bore. Sized at 2.125 inches in diameter with a No. 5 Morse taper shank, it seats directly into compatible taper-socket spindles on drill presses, lathes, and radial arm drills without a chuck. The bit is manufactured from high-speed steel with an oxide finish that provides mild corrosion resistance and reduces friction at the cutting edge. A 118-degree point angle makes it a general-purpose geometry suited for steel, cast iron, and similar ferrous materials. Machinists and toolroom technicians are the primary installers of this bit.

This drill bit is intended for use in heavy industrial and machining environments where large-diameter through-holes or blind holes are required in metal workpieces. It fits No. 5 Morse taper spindles commonly found on floor-standing drill presses and engine lathes. With a flute length of 10.25 inches and an overall length of 17.375 inches, it handles deep-hole drilling passes in thick plate and structural stock. General-purpose tool performance rating makes it appropriate for production shops, maintenance departments, and toolrooms working in ferrous and some non-ferrous materials.

Key Features

• 2.125-inch cutting diameter for large-bore drilling in a single pass
• No. 5 Morse taper shank for direct spindle seating without a chuck adapter
• High-speed steel construction maintains hardness at elevated cutting temperatures
• 118-degree point angle provides general-purpose geometry suitable for ferrous metals
• Oxide finish reduces surface friction and provides mild corrosion resistance
• 10.25-inch flute length supports chip evacuation in deep-hole applications

Compatibility

Designed for use with machine spindles or sleeves accepting a No. 5 Morse taper, typical of heavy-duty floor drill presses, engine lathes, and similar machine tools equipped with a 5MT socket.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Power down and lock out the machine before seating or removing the taper shank. Clean the taper socket and shank mating surfaces thoroughly before insertion to ensure full contact and prevent chatter or runout. Use a proper drift and drift slot to remove the bit from the spindle — never strike the bit body directly to free the taper.