Harvey Tool 941130 Corner Radius End Mill 1/4 in 4 Flute

Product Description

The HARVEY TOOL 941130 is a solid carbide corner radius end mill designed for precision milling in metalworking and machining applications. It features a 1/4 inch mill diameter, a 3/8 inch length of cut, and a 0.030 inch corner radius that reduces stress concentrations at part edges and improves surface finish. With 4 right-hand spiral flutes and a 30-degree helix angle, the 941130 is built for both roughing and finishing passes. At 2.5 inches overall length with a 1/4 inch straight-cylindrical shank, this single-end tool fits standard toolholders used on CNC machining centers and manual mills. It ships bright and uncoated.

This end mill is suited for cutting steel, stainless steel, cast iron, non-ferrous metals, aluminum, wood, and composite materials. It falls within the Harvey Tool Miniature End Mills - Corner Radius - Stub and Standard series, making it a go-to choice for machinists working with small-diameter features, tight corner radii, and detailed part geometry. Typical applications include profiling, slotting, and contouring on precision components where edge integrity and dimensional accuracy are critical.

Key Features

• 0.030 inch corner radius reduces stress risers and improves edge finish on workpiece corners
• Solid carbide construction provides rigidity and wear resistance in ferrous and non-ferrous materials
• 4 right-hand spiral flutes with 30-degree helix support both roughing and finishing in a single tool
• Center-cutting geometry allows direct plunge entry without pre-drilled pilot holes
• Bright/uncoated finish suitable for use across a broad range of materials including aluminum and composites
• Straight-cylindrical shank compatible with standard collet chucks and toolholders

Compatibility

Designed for use with standard collet-style toolholders and end mill holders accepting a 1/4 inch straight shank. Compatible workpiece materials include steel, stainless steel, cast iron, non-ferrous metals, aluminum, wood, and composites.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Ensure the machine spindle is fully stopped and locked out before loading or changing tooling. Seat the shank fully in the toolholder collet and torque the retaining nut to the toolholder manufacturer's specification. Verify runout with a dial indicator before beginning a cut, particularly for tight-tolerance work.