The End Mill Secret Most Machinists Don't Know - In The Loupe TV Ep. 33

Are you dealing with chatter at the machine? The fix might be in your end mill geometry. In this episode of In The Loupe TV, Don Grandt, Cutting Tool Counselor at Harvey Performance Company, breaks down the single most important advancement in end mill design over the last two decades: Impact Frequency. Don covers three key geometry features that break up harmonics, reduce chatter, and improve tool life: • Variable Pitch (Variable Index) - Why unequal flute spacing changes everything • Variable Helix - How differing helix angles free up your cut • Progressive Helix - The geometry that evolves along the length of cut Whether you're chasing a better finish, longer tool life, or faster cycle times, this episode is required watching. 🔧 Learn more at: harveyperformance.com 📺 Subscribe to 'In The Loupe TV' for more cutting tool education from Harvey Performance Company. #CNCMachining #EndMill #CuttingTools #HarveyPerformance #Machinist #VariablePitch #VariableHelix #Chatter #CNCProgramming #InTheLoupeTV In The Loupe Blog: https://www.harveyperformance.com/in-... Harvey Performance Company: https://www.harveyperformance.com/ Harvey Tool: https://www.harveytool.com/ Helical Solutions: https://www.helicaltool.com/ Micro 100: https://www.micro100.com/ Titan USA: https://www.titancuttingtools.com/ CoreHog: https://corehog.com/ Valor Holemaking: https://www.valorholemaking.com/