Harvey Tool 12735-C4 Square End Mill 0.035 in 3 Flute Carbide

Product Description

The HARVEY TOOL 12735-C4 is a solid carbide square end mill designed for precision milling in demanding machining applications. With a 0.0350-inch cutting diameter and a 0.175-inch length of cut, this tool is built for tight-tolerance work in small-feature machining. The 3-flute geometry with a 30-degree helix angle promotes efficient chip evacuation and smooth cutting action. An amorphous diamond coating adds surface hardness and lubricity, extending tool life in abrasive or non-ferrous materials. The 0.125-inch shank and 2.5-inch overall length make it compatible with standard collet toolholding systems used in vertical machining centers and CNC routers.

This end mill is suited for small-part machining in industries such as medical device, aerospace, and electronics manufacturing, where fine features and close tolerances are required. The centercutting design allows for plunge entry, giving machinists flexibility in toolpath programming. Right-hand cut with right-hand flute direction is the standard configuration for conventional CNC milling setups. The 1/8-inch shank diameter fits widely available collets and shrink-fit holders used in production and prototype shops.

Key Features

• 0.0350-inch cutting diameter for fine-feature and micro-milling operations
• Amorphous diamond coating for improved wear resistance and reduced friction
• 3-flute design with 30-degree helix angle for efficient chip clearance
• Centercutting geometry permits direct plunge entry into workpiece material
• Right-hand cut and right-hand flute direction for standard CNC milling spindles
• Solid carbide construction provides rigidity and dimensional stability at small diameters

Compatibility

Designed as an OEM-style replacement and production-use end mill for standard 1/8-inch collet toolholding systems on CNC vertical machining centers and high-speed spindle platforms. No specific machine or system compatibility data was provided by the manufacturer for this SKU.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the spindle is fully stopped and the machine is in a safe state before changing tooling. Seat the shank fully into the collet or holder to the recommended gauge-line depth and torque the collet nut per the toolholder manufacturer specifications. At small diameters, runout control is critical — inspect holder and collet condition before use to avoid premature tool breakage.