Hertel 2387439 Screw Machine Drill Bit Size 26 Hss Tin

Product Description

The HERTEL 2387439 is a screw machine length drill bit designed for high-speed drilling in metal, plastic, and composite materials. Built from high-speed steel (HSS) with a titanium nitride (TiN) coating, it delivers improved surface hardness and extended tool life compared to uncoated HSS bits. The 135-degree split point reduces walking on entry and requires no center punch on most materials. At 2-1/16 inches overall length with a 1-inch flute, this stub-length geometry provides added rigidity over jobber-length bits, making it well suited for high-precision, close-tolerance drilling operations. Right-hand cutting with a regular spiral flute ensures efficient chip evacuation.

This bit is sized to wire gauge Number 26, equivalent to 0.1470 inch decimal diameter, and is commonly used in screw machine shops, production drilling, and fabrication environments. The straight-cylindrical shank accepts standard drill chucks on bench drill presses, CNC machining centers, and hand-held power drills. Its compact stub length is especially practical when working in confined spaces or when spindle rigidity is a priority. Machinists, tool and die workers, and metal fabricators are the primary installers and users of this tooling.

Key Features

• 135-degree split point reduces thrust force and eliminates center-punch requirement on most materials
• TiN coating increases surface hardness and reduces friction for longer tool life
• Screw machine (stub) length provides greater rigidity than jobber-length bits
• Web-thinned parallel web construction for improved cutting efficiency
• Right-hand spiral flute promotes consistent chip removal during drilling
• Straight-cylindrical shank fits standard drill chucks without adapters

Compatibility

Designed as an OEM-style replacement or direct-fit drill bit for standard drill chucks accepting a 0.1470-inch straight-cylindrical shank, compatible with bench drill presses, CNC machining centers, and hand-held power drills.

Installation Notes

This tooling is installed and operated by machinists, metal fabricators, and tool and die technicians. Secure the straight-cylindrical shank firmly in the drill chuck before operation and verify chuck key removal prior to starting the spindle. Use appropriate cutting fluid or coolant for the workpiece material to preserve coating integrity and tool life. Follow applicable shop safety standards and machine guarding requirements during all drilling operations.