Harvey Tool 998632 Square End Mill 1/2 in 2 Flute Downcut

Product Description

The HARVEY TOOL 998632 is a solid carbide square end mill designed for precision milling operations where downward cutting forces and clean surface finishes are required. With a 1/2 inch cutter diameter, a 1-1/2 inch length of cut, and a 4 inch overall length, this single-end tool fits standard 1/2 inch collets and toolholders. The 2-flute, right-hand cut geometry with a 20-degree helix and downcut flute direction pushes chips toward the workpiece surface, making it well suited for laminates, composites, and materials prone to top-surface tearout. The bright, uncoated finish is typical for general-purpose carbide end mills where coating is not required or where re-sharpening is anticipated.

This end mill is used in CNC machining centers and manual mills for slotting, profiling, and peripheral milling operations. The downcut flute configuration makes it a go-to choice when machining wood composites, phenolics, carbon fiber, fiberglass, and similar layered or fibrous materials where upward chip ejection would cause surface delamination or fraying. The centercutting design allows plunge entry, adding flexibility to the toolpath. It is appropriate for both production shop environments and prototype machining applications.

Key Features

• Downcut flute geometry reduces top-surface tearout on laminates and composites
• Centercutting design permits direct plunge entry without a pre-drilled pilot hole
• 20-degree helix angle balances cutting forces for smooth material removal
• Right-hand cut with right-hand flute — compatible with standard spindle rotation
• Bright, uncoated solid carbide construction for general-purpose use and resharpenability
• Single-end configuration with 1/2 inch shank fits standard collets and shrink-fit holders

Compatibility

Designed for use in CNC machining centers and manual mills accepting a 1/2 inch shank. Suitable for downcut milling applications in wood, wood composites, laminates, fiberglass, carbon fiber, and similar materials requiring controlled chip direction.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Secure the shank to the full recommended insertion depth in the collet or toolholder, and verify runout with a dial indicator before cutting. Do not exceed the manufacturer-rated feeds and speeds for the workpiece material and machine spindle power.