Hertel 750238 Square End Mill 3/4 in 4 Flute Carbide Tin

Product Description

The HERTEL 750238 is a solid carbide square end mill designed for high-performance milling in ferrous and non-ferrous materials. With a 3/4-inch mill diameter, 3-inch length of cut, and four flutes, this tool delivers consistent chip evacuation and surface finish across a range of milling operations. The 30-degree helix angle balances cutting force with material removal rate. A TiN (titanium nitride) coating adds surface hardness and reduces friction at the cutting edge, extending tool life in production environments. This end mill is intended for use by machinists and tool-room professionals working on CNC or manual milling machines.

This end mill is suited for peripheral milling, slotting, profiling, and general-purpose material removal in job shop and production machining environments. The centercutting geometry allows plunge entry, adding flexibility in programming and setup. With a 6-inch overall length and 3/4-inch shank diameter, the tool fits standard R8, CAT, BT, and HSK toolholders sized for 3/4-inch shanks. Applications span roughing and semi-finishing passes in steel, stainless, cast iron, and similar workpiece materials.

Key Features

• 3/4-inch mill diameter with matching 3/4-inch shank for rigid tool holding
• 3-inch length of cut supports deep peripheral passes without tool change
• 4-flute spiral geometry with right-hand cut and right-hand flute direction
• 30-degree helix angle for balanced cutting forces and efficient chip flow
• Micrograin solid carbide substrate for rigidity and edge retention
• TiN coating reduces wear and extends tool life in production milling
• Centercutting design permits direct plunge entry

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide square end mill for CNC and manual milling machine setups accepting a 3/4-inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist following machine tool manufacturer guidelines. Secure the shank in a properly sized collet, end mill holder, or shrink-fit toolholder torqued to the spindle manufacturer specification before operation. Inspect the tool holder bore and shank for contamination or runout before clamping. Never exceed the spindle RPM or axial depth-of-cut limits established in the machining program for the selected material.