Hertel 89321269 Screw Machine Drill Bit 3/4 in Hss

Product Description

The HERTEL 89321269 is a screw machine length drill bit designed for metal cutting and general-purpose drilling applications. Built from high-speed steel with a bright, uncoated finish, this bit measures 3/4 inch in diameter with an overall length of 5 inches and a flute length of 3-1/8 inches. The 118-degree split-point geometry provides a standard entry angle suited to a wide range of ferrous and non-ferrous materials. Its shorter-than-jobber body length increases rigidity and reduces deflection, making it a practical choice for production drilling and machine shop work.

This drill bit is intended for use in drill presses, CNC machining centers, turret lathes, and other machine tool applications where a compact, rigid bit is preferred. The right-hand cutting direction is standard for conventional drilling setups. General-purpose grade construction makes it suitable for drilling mild steel, aluminum, cast iron, brass, and similar materials at moderate feed and speed rates. Machinists, tool-and-die workers, and maintenance technicians working in shop environments are the primary users of this style of bit.

Key Features

• 3/4 inch diameter with a 5-inch overall length for compact, rigid cutting
• 118-degree point angle for general-purpose material entry
• High-speed steel construction handles moderate heat and wear during drilling
• Bright, uncoated finish — no coating to chip or peel during regrinding
• Right-hand cut, compatible with standard drill press and machine tool spindles
• Shorter screw machine length body reduces deflection versus jobber-length bits

Compatibility

Designed as a general-purpose screw machine length drill bit suitable for standard drill chucks and machine tool spindles accepting 3/4 inch shank tooling.

Installation Notes

Installation and use should be performed by qualified machinists or maintenance technicians familiar with machine tool operation. Ensure the drill press or machining center is fully powered down and the spindle is at rest before loading or unloading the bit. Secure the shank firmly in the chuck or collet before beginning any drilling operation. Follow applicable shop safety standards and use appropriate cutting fluid for the material being drilled to extend tool life and maintain hole quality.