Hertel 89322127 Screw Machine Drill Bit Wire 59 Hss

Product Description

The HERTEL 89322127 is a screw machine length drill bit designed for high-speed steel drilling in general-purpose machining applications. Built to wire gauge size 59, this bit measures 0.0410 inches in decimal diameter with a 118-degree split-point angle that promotes accurate starting and reduces walking on entry. The shortened screw machine length body, at 1.375 inches overall length, provides added rigidity compared to jobber-length bits, making it well suited for work in drill presses, turret lathes, screw machines, and CNC applications where overhang and deflection must be minimized. The bright uncoated finish allows for easy visual inspection of the cutting edge condition during use.

This bit is intended for general-purpose drilling in mild steel, aluminum, brass, plastics, and similar materials. The screw machine length geometry makes it a common choice in production environments where short-flute, high-rigidity tooling is required. It is typically used by machinists, tool and die workers, and maintenance technicians operating automatic screw machines, manual drill presses, or hand-held power tools where a compact, stiff drill is needed. The right-hand cutting direction is standard for conventional drilling operations.

Key Features

• Wire gauge size 59, equivalent to 0.0410 inches decimal diameter
• 118-degree drill point angle for general-purpose material entry
• Screw machine length body at 1.375 inches OAL for increased rigidity
• 0.5-inch flute length provides adequate chip evacuation in short-depth holes
• Bright uncoated high-speed steel construction for easy edge inspection
• Right-hand cut, compatible with standard drilling equipment

Compatibility

Designed as a general-purpose screw machine length drill bit suitable for use in standard drill chucks, automatic screw machines, drill presses, and CNC turret equipment accepting wire-gauge tooling in the 0.0000 to 0.1000 inch decimal size range.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or maintenance technicians familiar with rotating cutting tool safety. Ensure the drill chuck or collet is fully tightened and the workpiece is securely fixtured before beginning any drilling operation. Always power down and de-energize the machine before changing tooling. Do not exceed the recommended feed rate or spindle speed for the workpiece material and drill diameter, as small-diameter bits are susceptible to breakage under lateral load.