Hertel E1031132 Square End Mill 1.5 in 4 Flute Hss

Product Description

The HERTEL E1031132 is a 4-flute square end mill ground from M7 high speed steel for use in general-purpose milling operations on ferrous and non-ferrous materials. It features a 1.5-inch diameter cutting head with a 2-inch length of cut and a 1.25-inch shank diameter, giving it the rigidity needed for slotting, profiling, and peripheral milling. The 30-degree spiral flute geometry promotes efficient chip evacuation during full-depth passes. This tool ships uncoated and is intended for machinists and toolroom professionals working in manual or CNC milling environments.

This end mill suits applications in job shops, maintenance machining, and production environments where a large-diameter HSS tool is preferred over carbide for interrupted cuts or softer workpiece materials. The right-hand cut and right-hand flute configuration is the standard for the majority of vertical and horizontal milling setups. At 4.5 inches overall length with a 2-inch length of cut, it handles moderate-depth cavities and shoulder milling without excessive overhang.

Key Features

• 1.5-inch milling diameter with 2-inch length of cut for moderate-depth profiling and slotting
• M7 high speed steel construction provides toughness in interrupted-cut and manual-feed applications
• 30-degree helix angle on spiral flutes promotes chip flow and reduces built-up edge
• 1.25-inch shank diameter for secure retention in standard milling collets and side-lock holders
• Right-hand cut, right-hand flute — compatible with standard spindle rotation on most knee and CNC mills
• Non-centercutting design; requires a pre-drilled hole or ramping entry for plunge operations

Compatibility

Designed as a standard-shank square end mill for use in milling machines, machining centers, and drill presses fitted with appropriate milling arbors that accept a 1.25-inch straight shank.

Installation Notes

Installation and tool changes must be performed with the machine spindle fully stopped and the power source locked out per applicable safety procedures. Seat the shank fully into the collet or side-lock holder and torque the retention hardware according to the toolholder manufacturer's specification. Confirm runout with a dial indicator before taking a first cut, as excessive runout on a large-diameter end mill accelerates flute wear and can cause chatter. This tool is not centercutting and should not be used for direct plunge drilling without a pilot hole or a programmed ramp entry.