Accupro 12176839 Corner Radius End Mill 1in 2 Flute Altin

Product Description

The ACCUPRO 12176839 is a single-end, corner radius end mill designed for precision milling in ferrous and hardened materials. Built from micrograin solid carbide and coated with AlTiN (aluminum titanium nitride), it delivers high heat resistance and extended tool life in demanding cutting environments. The 1 inch diameter cutting head features a 0.02 inch corner radius and a 40-degree helix angle, producing clean edge finishes while reducing radial forces. With a 1-3/4 inch length of cut and 4 inch overall length, this end mill is suited for profiling, slotting, and finishing passes where tight tolerances and consistent corner geometry are required. It is installed and operated by machinists and CNC tooling specialists.

This end mill is appropriate for use in CNC machining centers and manual milling applications where a corner radius profile is needed to reduce stress concentrations on workpiece edges. The centercutting design allows plunge entry, expanding its versatility across profiling and ramping operations. The right-hand flute direction and right-hand cutting orientation are standard for conventional CNC milling setups. The 1 inch shank diameter fits directly into standard ER or side-lock toolholders sized for 1 inch shanks.

Key Features

• Micrograin solid carbide construction for rigidity and wear resistance
• AlTiN coating provides oxidation resistance and extended tool life in high-temperature cuts
• 0.02 inch corner radius reduces edge chipping and workpiece stress concentrations
• 40-degree helix angle improves chip evacuation and surface finish quality
• Centercutting design permits plunge milling and ramping operations
• Single-end configuration with right-hand cut and right-hand spiral flutes

Compatibility

Designed as an OEM-style replacement or standard tooling option for CNC machining centers and manual mills accepting a 1 inch shank diameter end mill holder.

Installation Notes

This end mill is installed by qualified machinists or CNC tooling technicians. Ensure the machine spindle is fully stopped and locked out before changing tooling. Verify toolholder runout is within acceptable limits before tightening, as excessive runout will accelerate wear and reduce corner radius accuracy. Follow the machine tool manufacturer and toolholder manufacturer guidelines for proper torque and retention procedures.