Kennametal 3870452 Corner Radius End Mill 3/16in 3 Flute Carbide

Product Description

The KENNAMETAL 3870452 is a solid carbide corner radius end mill designed for material removal in non-ferrous metal applications. Part of the AADE series, it features a 3/16-inch diameter with a matching 3/16-inch straight-cylindrical shank, a 3/4-inch length of cut, and a 3-inch overall length. The submicron carbide grade delivers edge integrity under aggressive roughing conditions. Three right-hand spiral flutes with a high helix angle promote efficient chip evacuation, making this tool well-suited for high-throughput cutting in aluminum, copper, brass, and similar non-ferrous alloys. Licensed machinists and CNC operators are the primary installers of this tool.

This end mill is built for single-end use in roughing operations on non-ferrous metals. The centercutting geometry allows plunge entry, giving operators flexibility in toolpath programming. The bright/uncoated finish is appropriate for non-ferrous materials where coated tools can cause built-up edge. Compatible toolholding systems listed by the manufacturer include HC 1/2 through HC 1 1/4 Hydraulic Sleeves Inch with Inch Bores, HC 20M through HC 32M Hydraulic Sleeves Metric with Inch Bores, and ER Single Angle Standard Collets.

Key Features

• 3/16-inch solid carbide construction in submicron carbide grade for edge retention in non-ferrous roughing
• Corner radius end type reduces stress concentration at the cutting edge
• Three right-hand spiral flutes with high helix angle for chip evacuation
• Centercutting design allows direct plunge entry into workpiece
• Bright/uncoated finish prevents built-up edge on aluminum and other non-ferrous materials
• Straight-cylindrical shank compatible with hydraulic and ER collet toolholding systems

Compatibility

Compatible toolholding systems include HC 1/2 through HC 1 1/4 Hydraulic Sleeves Inch with Inch Bores, HC 20M through HC 32M Hydraulic Sleeves Metric with Inch Bores, and ER Single Angle Standard Collets. Intended for use on non-ferrous metals as the primary workpiece material.

Installation Notes

Installation is performed by machinists or CNC setup technicians. Ensure the machine spindle is fully stopped and locked out before loading or removing the tool. Verify the shank diameter matches the collet or hydraulic sleeve bore before tightening to avoid runout. Follow the toolholder manufacturer torque and clamping guidelines for secure retention at operating speeds.