Engineering plastics like Delrin (acetal), PEEK, nylon and UHMW machine easily but need sharp tools, high speeds, light cuts and good chip clearing to avoid melting and gumming. PEEK is common in medical and aerospace for its strength and biocompatibility.
General mills and lathes handle plastics; the trick is heat and chip management, not machine power. Coolant or air keeps parts cool and dimensionally stable.
Get a real number from a Machine Blue Book specialist — free, no obligation.
