Harvey Tool 934916 Square End Mill 1/4 in 3 Flute Carbide

Product Description

The HARVEY TOOL 934916 is a solid carbide square end mill designed for precision milling operations in metalworking and machining applications. With a 0.25 inch mill diameter and a 0.375 inch length of cut, this single-end tool delivers clean, flat-bottomed cuts across a range of ferrous and non-ferrous materials. Its 3-flute geometry balances chip evacuation with surface finish quality, making it a practical choice for slotting, profiling, and finishing passes. The 30-degree helix angle reduces cutting forces and supports smooth tool engagement. Right-hand cutting and right-hand flute direction are standard. Total package weight is 0.1 pounds.

This end mill suits CNC machining centers and manual mills in job shop, toolroom, and production environments. The 4 inch overall length with a 1.75 inch reach length allows access into moderate-depth features without excessive overhang. A 0.25 inch shank diameter fits standard ER and shrink-fit collet systems commonly found in vertical machining centers. The bright uncoated finish makes it well suited for use in aluminum, brass, and other non-ferrous alloys where coatings can cause adhesion issues, though it also performs in light steel cuts.

Key Features

• Solid carbide construction for rigidity and wear resistance in precision machining
• 3-flute design balances chip clearance and finish quality for slotting and profiling
• 30-degree right-hand helix reduces cutting forces and promotes smooth chip flow
• Extended reach of 1.75 inches enables access to deeper part features
• Centercutting capability allows plunge entry without a pre-drilled pilot hole
• Bright uncoated finish is optimal for non-ferrous materials and avoids built-up edge in aluminum

Compatibility

Designed as a standard replacement or direct-use solid carbide square end mill compatible with 0.25 inch collet toolholders including ER16, ER20, and shrink-fit systems on vertical and horizontal CNC machining centers.

Installation Notes

Installation is performed by a machinist or CNC toolroom technician. Secure the shank fully into the collet or toolholder to the recommended gauge-line depth before torquing the collet nut. Confirm runout with a dial indicator before first use, as excessive runout will accelerate tool wear and degrade surface finish. Always verify spindle speed and feed rate settings against the material being cut before engaging the workpiece.