ITC Carbide End Mill Square Edge 4121 - 4 Flute 30° Helix With Facet Relief & Diamond Coating - Composites - 3mm Disc This through-coolant drill is optimized

This through-coolant drill is optimized for deep-hole work with a 10xD length

controlled reaming for a 12

and a consistent bore finish with reduced finishing time

this end mill delivers consistent cutting action across aluminum and non‑ferrous metals

it stands up to daily use in busy shop environments and maintains accurate readings over time

ITC Carbide End Mill Square Edge 4121 - 4 Flute 30° Helix With Facet Relief & Diamond Coating - Composites - 3mm Disc This through-coolant drill is optimizedIntroducing the ITC Carbide End Mill Square Edge 4121, a high performance cutting tool designed for composite materials. This 3 mm end mill features a 4 flute configuration with a 30 helix, facet relief, and a diamond coating to help you cut cleanly and predictably. Built for professionals who demand precision, durability, and consistent results, this end mill delivers efficient chip evacuation and extended tool life for demanding composite