Hertel 89324339 Taper Shank Drill Bit 55/64 in 3MT Hss

Product Description

The HERTEL 89324339 is a taper shank drill bit designed for drilling precise, clean holes in metal and other hard materials. Sized at 55/64 inches (0.8594 inches decimal), it uses a No. 3 Morse Taper shank for secure engagement in compatible spindles and drill presses. The 118-degree split or standard point angle suits general-purpose drilling in a wide range of ferrous and non-ferrous stock. Constructed from high-speed steel with an oxide finish, the bit resists heat buildup during extended cutting cycles. Overall length is 10.75 inches, with a flute length of 6.125 inches, giving adequate chip clearance for moderate-depth holes. Licensed machinists, tool-and-die shops, and maintenance technicians are the primary users.

This drill bit is suited for production and maintenance drilling operations where a Morse Taper spindle interface is standard equipment. Typical applications include drilling through mild steel plate, cast iron, aluminum, and similar materials in machine shops, fabrication facilities, and industrial maintenance environments. The general-purpose designation makes it appropriate for a broad range of drilling tasks where high-speed steel tooling meets the material and speed requirements of the job.

Key Features

• 55/64 inch diameter (0.8594 inches decimal) for accurate hole sizing
• No. 3 Morse Taper shank for positive, self-holding chuck engagement
• 118-degree point angle suited to general-purpose drilling in metal and similar materials
• High-speed steel construction provides durability and heat resistance during cutting
• Oxide finish helps reduce friction and improve chip flow at the cutting edge
• 6.125-inch flute length supports adequate chip evacuation on moderate-depth holes

Compatibility

Designed for use in drill presses, lathes, and milling machines equipped with a No. 3 Morse Taper spindle or adapter socket.

Installation Notes

Installation is performed by machinists or maintenance technicians familiar with Morse Taper tooling. Clean the taper shank and spindle socket thoroughly before seating to ensure full contact and prevent slippage during operation. Use a proper drift and drift slot to remove the bit after use — do not strike the spindle housing. Always set spindle speed appropriate to the bit diameter and workpiece material before starting the cut.