Accupro 12182975 Corner Radius End Mill 1 in 4 Flute

Product Description

The ACCUPRO 12182975 is a solid carbide corner radius end mill designed for precision milling operations in ferrous and non-ferrous materials. Built from micrograin solid carbide, it delivers a 1 inch cutting diameter with a 0.09 inch corner radius and a 2.25 inch length of cut. The bright uncoated finish suits applications where coating is not required or where operators prefer an uncoated substrate for specific materials. With 4 right-hand spiral flutes and a right-hand cutting direction, it provides efficient chip evacuation and consistent surface finish. Licensed machinists and CNC operators use this tool in vertical and horizontal machining centers for profiling, slotting, and contouring.

This end mill is suited for long-reach milling applications where a standard-length tool cannot access the full depth of a feature. The 5 inch overall length and 1 inch shank diameter make it compatible with ER or shell mill holders sized for a 1 inch bore. The centercutting design allows plunge entry as well as conventional peripheral cutting. Typical use cases include deep-pocket profiling, side milling of tall workpiece walls, and contour finishing passes where a corner radius is required to blend vertical and horizontal surfaces. It is applicable in job shop and production environments.

Key Features

• Micrograin solid carbide construction for rigidity and wear resistance
• 0.09 inch corner radius reduces stress concentration at the cutting edge
• 4 right-hand spiral flutes with right-hand cutting direction for standard spindle rotation
• Centercutting capable — supports direct plunge entry
• Long-length design at 5 inches OAL for deep-reach applications
• Bright uncoated finish suitable for a broad range of workpiece materials

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide end mill for machining centers accepting a 1 inch straight shank toolholder. No specific machine model compatibility was stated in the product data.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the spindle is fully stopped and locked before loading or removing the tool from the holder. Verify holder bore concentricity and runout before use, as excessive runout will accelerate edge wear and compromise dimensional accuracy. Follow the machine tool manufacturer guidelines for tool stick-out and feed-per-tooth recommendations appropriate to the workpiece material.