Accupro 14788508 Square End Mill 4 Flute Solid Carbide 3mm

Product Description

The ACCUPRO 14788508 is a solid carbide square end mill designed for precision milling operations in metal, composite, and hardened material applications. With 4 helical flutes and a centercutting geometry, this end mill supports both plunge cuts and lateral passes without requiring a pre-drilled entry point. The 3mm mill diameter and 6mm length of cut make it well suited for fine-detail slotting, profiling, and contouring work. A helix angle in the 29 to 31 degree range promotes efficient chip evacuation and reduces chatter at moderate to high spindle speeds. Machinists and tool-and-die technicians working on CNC machining centers and manual mills will find this a reliable small-diameter cutter for tight-tolerance work.

This end mill fits standard 3mm cylindrical shank tool holders and collets. It is intended for use in CNC milling centers, vertical mills, and similar machine tool setups performing finishing and semi-finishing passes on ferrous and non-ferrous workpieces. The 38mm overall length provides adequate reach for most shallow to mid-depth cavity work without excessive deflection risk at this diameter. It is sold individually and is a direct replacement-style cutter for worn or broken small-diameter end mills in production and job shop environments.

Key Features

• Centercutting design allows direct plunge entry without pre-drilling
• 4 helical flutes for improved chip flow and surface finish
• Solid carbide construction for rigidity and wear resistance in demanding cuts
• Helix angle of 29 to 31 degrees balances cutting efficiency and edge strength
• Cylindrical shank fits standard 3mm collets and tool holders
• No chipbreaker geometry — suited for finishing and light roughing passes

Compatibility

Designed as an OEM-style replacement small-diameter square end mill for use in standard 3mm collet and tool holder systems on CNC machining centers and manual vertical mills.

Installation Notes

This end mill is installed and changed by machinists or CNC setup technicians. Always power down and lock out the spindle before changing tooling. Use the correct collet size and torque the tool holder to the machine manufacturer's specification using appropriate spanner wrenches. Inspect the shank for runout before beginning a cut, as deflection and tool breakage risk increase significantly at small diameters if the tool is not properly seated.