Hertel 61699708 Screw Machine Drill Bit Wire 44 Hss

Product Description

The HERTEL 61699708 is a screw machine length drill bit designed for high-speed steel cutting applications in metal, wood, and general-purpose materials. Manufactured from high-speed steel with an oxide coating, this bit measures 1.75 inches in overall length with a 0.75-inch flute length, making it well-suited for short-reach, high-production drilling work. The standard 118-degree point angle and right-hand spiral flutes allow clean entry and efficient chip evacuation. Weighing 0.13 pounds, this compact bit is built for use in drill presses, screw machines, and CNC setups where stub-length tooling is required.

This drill bit is sized at wire gauge 44, with a decimal diameter of 0.0860 inches. It fits standard straight-cylindrical shank chucks and is rated for general-purpose drilling. Screw machine length bits are commonly used in production machining environments where rigidity and reduced deflection matter more than reach. This bit is appropriate for machinists, tool-and-die technicians, and production floor operators working in light metal and ferrous applications.

Key Features

• Wire gauge size 44 with a decimal diameter of 0.0860 inches for precise hole sizing
• 118-degree standard point angle for general-purpose entry and centering
• High-speed steel construction with oxide coating for surface protection and reduced friction
• Screw machine length design provides added rigidity and reduced deflection versus jobber-length bits
• Two-flute regular spiral with straight-cylindrical shank for universal chuck compatibility
• ANSI specification designation ensures dimensional conformance

Compatibility

Designed as a general-purpose replacement or production-use screw machine length drill bit for standard straight-cylindrical shank chucks accepting tooling at 0.0860 inches in diameter.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician familiar with screw machines, drill presses, or CNC equipment. Ensure the machine is fully powered down and the spindle is locked before changing tooling. Secure the shank fully in the chuck and verify runout before initiating a cut. Do not exceed the recommended feed and speed parameters for the workpiece material.