Hertel 89323968 Taper Shank Drill Bit 1-17/32 in 4MT Hss

Product Description

The HERTEL 89323968 is a taper shank drill bit designed for heavy-duty drilling in metal, steel, and similar materials. It features a 1-17/32 inch (1.5313 inch decimal) cutting diameter and a 4 Morse Taper (4MT) shank for secure seating in compatible drill press spindles and machining center quills. The 118-degree point angle suits general-purpose drilling across a wide range of workpiece materials. Manufactured from high-speed steel (HSS) with an oxide finish, the bit provides resistance to heat buildup during prolonged cutting operations. Machinists, tool-and-die workers, and maintenance professionals working with large-diameter holes will find this bit suited to their production and repair applications.

This drill bit is intended for use in drill presses, radial arm drills, lathes, and milling machines equipped with a 4MT spindle socket. It is well suited to general-purpose hole-making in ferrous metals, cast iron, and structural steel in both shop and industrial maintenance environments. The 9.375-inch flute length provides good chip clearance on deep-hole passes, and the 15-inch overall length (OAL) accommodates setups requiring extended reach into workpieces or fixtures.

Key Features

• 1-17/32 inch (1.5313 inch) cutting diameter for large-bore drilling
• 4 Morse Taper shank for positive, self-holding fit in compatible spindles
• 118-degree point angle — standard geometry for general-purpose drilling
• High-speed steel construction handles heat generated during heavy cuts
• Oxide finish helps reduce friction and extend cutting life
• 9.375-inch flute length supports efficient chip evacuation on deeper holes

Compatibility

Designed for use in drill presses, lathes, radial arm drills, and milling machines equipped with a No. 4 Morse Taper (4MT) spindle or sleeve socket.

Installation Notes

Installation and use should be performed by a qualified machinist or tool operator familiar with Morse Taper tooling. Before mounting or removing the bit, ensure the machine is fully powered down and locked out per applicable OSHA lockout/tagout procedures. Clean the taper shank and spindle socket thoroughly before seating to ensure full contact and prevent slippage. Use a proper drift and soft mallet to remove the bit from the spindle; never force or pry the taper joint unevenly.