Looking to minimize the effects of harmonics? Check out our 3400 Harmon-i-cut end mill! It's specially designed with a variable helix, unequal index, and varying rake to help minimize the effects of harmonics and chatter while maximizing tool life and removal rates. It excels in difficult-to-machine ferrous materials. Our 3400 Harmon-i-cut is a high-performance end mill with 4-flutes and stocked with FC-18 coating, which helps provide wear resistance. Get started with our Harmon-i-cut today!