Hertel 2387405 Screw Machine Drill Bit Size 23 Hss Tin

Product Description

The HERTEL 2387405 is a screw machine length drill bit designed for high-speed drilling in metal, plastic, and similar materials. Built from high-speed steel with a titanium nitride (TiN) coating, it offers increased surface hardness and extended tool life compared to uncoated HSS bits. The 135-degree split point reduces walking on entry and requires less thrust than a conventional 118-degree point. At 2-1/16 inches overall length, the screw machine format provides added rigidity in close-quarter and short-stroke drilling applications. The straight-cylindrical shank fits standard drill chucks. This bit is typically installed by machinists, tool-and-die workers, and maintenance technicians.

The 2387405 is suited for use in drill presses, CNC machining centers, and hand-held power drills where a stubby, rigid bit is preferred over a jobber-length alternative. The 0.154-inch diameter corresponds to wire gauge size 23. The 1-inch spiral flute length accommodates shallow to moderate-depth holes. The TiN coating is well matched to ferrous metals, aluminum, and thermoplastics encountered in general fabrication and production environments.

Key Features

• 135-degree split point reduces thrust and minimizes drill walking on entry
• TiN coating increases surface hardness and extends tool life versus bare HSS
• Screw machine length body provides greater rigidity than jobber-length bits
• Web-thinned, parallel-web construction reduces cutting resistance
• Straight-cylindrical shank compatible with standard three-jaw drill chucks
• Right-hand cutting direction, regular spiral flute for efficient chip evacuation

Compatibility

Designed as an OEM-style replacement or direct substitute for size 23 (0.154-inch) screw machine length drill bits used in standard drill chucks accepting straight-cylindrical shanks.

Installation Notes

Installation and use should be performed by qualified machinists or maintenance technicians familiar with rotating cutting tools. Secure the shank fully in the chuck and verify runout before beginning a cut. Always power down and de-energize the machine before changing bits. Do not exceed the rated speed range for high-speed steel tooling in the material being drilled, and use appropriate cutting fluid when drilling ferrous metals to manage heat buildup.