Hertel 750434 Square End Mill 1/16 in 4 Flute Carbide

Product Description

The HERTEL 750434 is a solid carbide square end mill designed for precision milling in ferrous and non-ferrous materials. Built from micrograin carbide with a TiCN finish, it delivers hardness and wear resistance in demanding cutting environments. The 1/16 inch cutting diameter and 3/16 inch length of cut make it suited to fine detail work, slotting, and profiling in tight geometries. The 4-flute spiral configuration with a 30-degree helix angle promotes efficient chip evacuation and smooth surface finish. Licensed machinists and CNC operators install this tool in vertical and horizontal milling setups where small-diameter accuracy is critical.

This end mill is used in precision machining applications requiring tight tolerances on small features. The centercutting geometry allows direct plunge entry, enabling full-slot milling without pre-drilling. The 1/8 inch shank diameter fits standard collets and tool holders common to CNC machining centers and manual mills. It is well suited for die and mold work, prototype machining, and finish passes on aluminum, steel, stainless, and similar materials where a regular-length, small-diameter tool is required.

Key Features

• Solid micrograin carbide construction for rigidity and edge retention in small-diameter tools
• TiCN coating improves surface hardness and reduces friction during cutting
• 4-flute spiral design with 30-degree helix angle for efficient chip flow and improved finish
• Centercutting capable — allows direct plunge milling without pre-drilling
• Right-hand cut and right-hand flute configuration for standard spindle rotation
• Mill diameter tolerance of plus 0.000 / minus 0.002 inches for consistent fit and finish

Compatibility

Designed as a direct-fit replacement-style solid carbide square end mill for use in CNC machining centers and manual milling machines equipped with collets or tool holders accepting a 1/8 inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Power down and lock out the spindle before inserting or removing the tool from the collet or tool holder. Ensure the collet bore and shank are clean and free of chips or debris before clamping to maintain runout within tolerance. At 1/16 inch diameter, excessive side load or improper feed rates can cause tool breakage — verify feeds and speeds against the workpiece material before beginning the cut.