Accupro 12462858 Square End Mill 0.035 in 4 Flute Altin

Product Description

The ACCUPRO 12462858 is a solid carbide square end mill designed for precision milling in tight-tolerance machining applications. With a 0.035 inch cutting diameter and a 0.105 inch length of cut, this tool is built for small-feature work where rigidity and dimensional accuracy are critical. The AlTiN coating provides high heat resistance and extends tool life in ferrous and hardened materials. A 30-degree helix angle promotes efficient chip evacuation, and the micrograin carbide substrate supports the sharp edges needed for fine-detail cuts. This end mill is installed and used by machinists and tooling professionals in CNC milling operations.

This end mill is suited for small-diameter milling tasks in precision machining environments, including mold making, die work, and detailed part profiling. The extended reach design with a 0.315 inch reach length allows access to recessed features and stepped pockets without sacrificing tool stability. The 1/8 inch shank diameter fits standard collet systems found on CNC machining centers and high-speed spindles. Centercutting capability allows for plunge entry directly into the workpiece.

Key Features

• 0.035 inch cutting diameter with mill diameter tolerance of +0.0000 / -0.0010 inches for tight dimensional control
• AlTiN coating for elevated heat resistance and extended tool life in hard and abrasive materials
• 4-flute spiral design with right-hand cut and right-hand flute direction for efficient chip removal
• Micrograin solid carbide substrate for enhanced edge retention at small diameters
• Extended reach with 0.315 inch reach length for access to deep or recessed features
• Centercutting geometry allows direct plunge milling without pre-drilling

Compatibility

Designed as a standard 1/8 inch shank square end mill compatible with collet-style toolholders on CNC machining centers and high-speed milling spindles accepting 0.125 inch shank tooling.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Ensure the spindle is fully powered down and the machine is in a safe state before changing tooling. Seat the shank fully into a clean, undamaged collet and torque the collet nut to the toolholder manufacturer specification. At this diameter, runout control is critical — inspect collet condition and verify runout with a dial indicator before beginning production cuts.