Accupro 12176919 Square End Mill 1/8 in 4 Flute Carbide Altin

Product Description

The ACCUPRO 12176919 is a 4-flute solid carbide square end mill designed for precision milling in ferrous and non-ferrous materials. Built from micrograin carbide and coated with AlTiN (aluminum titanium nitride), it handles elevated cutting temperatures and abrasive materials that would degrade standard coatings. The stub-length geometry — 0.375 inches length of cut on a 1.5 inches overall length — provides rigidity and resistance to deflection in tight setups. The 40-degree helix angle promotes efficient chip evacuation and smooth cutting action. Center-cutting capability allows direct plunging into workpieces without pre-drilling.

This end mill is suited for milling operations in CNC machining centers, manual mills, and multi-axis setups where a compact tool profile is required. The stub length makes it a reliable choice for shallow-to-moderate depth slot milling, profiling, and contouring in steel, stainless steel, hardened alloys, and cast materials. The 0.125-inch diameter and matching 0.125-inch shank fit standard collets and ER-series toolholders common in production and job-shop environments. Machinists and toolroom technicians handling precision component work are the primary installers of this tooling.

Key Features

• AlTiN coating provides thermal resistance and extended tool life in hard and abrasive materials
• Micrograin solid carbide substrate for superior hardness and edge retention
• 40-degree helix angle promotes efficient chip flow and reduces cutting forces
• Center-cutting design allows direct plunge entry without a pilot hole
• Right-hand cut and right-hand flute configuration for standard spindle operation
• Stub-length body reduces deflection and improves rigidity in close-clearance setups

Compatibility

Designed as a standard shank end mill compatible with 1/8-inch collets and ER-series toolholders used in CNC machining centers and manual knee mills. No specific machine model compatibility data was provided in the product input.

Installation Notes

Installation and tool changes must be performed with the spindle fully stopped and the machine in a locked-out, de-energized state. Seat the shank fully into the collet or toolholder and torque the retention nut to the toolholder manufacturer's specification. Verify runout with a dial indicator before initiating a cut. A licensed machinist or trained CNC operator should set speeds and feeds appropriate for the workpiece material and depth of cut.