Accupro 12182757 Corner Radius End Mill 3/16 in 4 Flute

Product Description

The ACCUPRO 12182757 is a solid carbide corner radius end mill designed for precision milling operations in metalworking and machining applications. With a 3/16-inch (0.1875-inch) cutting diameter and a 0.02-inch corner radius, it produces smooth, radiused edges that reduce stress concentrations in finished workpieces. The 4-flute, right-hand spiral geometry paired with a 40-degree helix angle promotes efficient chip evacuation and surface finish quality. At 2 inches overall length with a 3/8-inch length of cut, this is a stub-length configuration built for rigidity in tight setups. The bright, uncoated finish suits a range of base materials where coating reactions are a concern.

This end mill is suited for machinists and tool-and-die professionals working on CNC machining centers or manual knee mills requiring corner radius profiles on ferrous and non-ferrous materials. The centercutting design allows plunge entry, making it versatile for interpolated pocketing and slot entry operations. Stub length reduces deflection during aggressive side milling passes. The micrograin carbide substrate supports higher feed rates and longer tool life compared to standard carbide grades in hardened and abrasive materials.

Key Features

• 0.02-inch corner radius reduces edge chipping and stress risers on finished part geometry
• 40-degree helix angle improves chip flow and reduces cutting forces
• Centercutting capability allows direct plunge entry without pre-drilling
• Micrograin carbide substrate for improved wear resistance and edge retention
• Stub-length configuration maximizes rigidity and minimizes tool deflection
• Bright/uncoated finish compatible with a broad range of workpiece materials

Compatibility

Designed as an OEM-style replacement and standard tooling option for CNC machining centers and manual mills accepting a 3/16-inch straight shank end mill with right-hand cutting direction.

Installation Notes

Installation should be performed by a qualified machinist following shop safety procedures. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Use a properly sized collet or end mill holder matched to the 3/16-inch shank diameter; verify runout with a dial indicator before production cuts. Follow the machine tool manufacturer guidelines and applicable shop standards for speeds, feeds, and tool projection length.