Hertel 89324404 Taper Shank Drill Bit 3-1/4 in 6MT Hss

Product Description

The HERTEL 89324404 is a taper shank drill bit engineered for large-diameter hole drilling in metal, steel, and other ferrous and non-ferrous materials. It carries a 3.25-inch diameter cutting edge, a No. 6 Morse taper shank, and a 118-degree point angle suited for general-purpose drilling. The bit is manufactured from high-speed steel with an oxide finish that provides basic lubricity and surface protection. At 23 inches overall length with a 15.25-inch flute length, this bit is sized for heavy-duty drilling operations in machining, fabrication, and industrial maintenance environments. A licensed machinist or tool-and-die technician is the typical installer.

This drill bit is intended for use in large drill presses, radial arm drills, or horizontal boring mills equipped with a No. 6 Morse taper spindle. Its general-purpose designation makes it appropriate for production drilling and maintenance operations where a large-diameter through-hole or stepped bore is required. The oxide finish is compatible with standard cutting fluids. Applications include structural steel fabrication, heavy equipment repair, and industrial manufacturing where a 3.25-inch bore diameter is specified.

Key Features

• 3.25-inch (3-1/4 inch) cutting diameter for large-bore drilling operations
• No. 6 Morse taper (6MT) shank for direct spindle mounting without a chuck
• 118-degree point angle for general-purpose drilling in a wide range of materials
• High-speed steel construction provides hardness and heat resistance at elevated cutting speeds
• Oxide finish offers basic surface protection and improved chip flow
• 15.25-inch flute length supports deep-hole drilling with adequate chip evacuation

Compatibility

Designed for use in drill presses, boring mills, or machine tool spindles fitted with a No. 6 Morse taper socket.

Installation Notes

Installation requires a machine spindle with a No. 6 Morse taper receiver; the taper shank seats by hand pressure and drive friction — do not force with excessive impact. Ensure the spindle and taper shank are clean and free of chips or burrs before seating to prevent runout. Always secure the workpiece with appropriate fixturing before commencing drilling, and apply a compatible cutting fluid to extend bit life and manage heat buildup. Removal typically requires a drift key inserted through the spindle drift slot.