Jan 14, 2015· KM3000 KEY MILL. The product that started CLIMAX more than 50 years ago! A small but rugged machine able to cut full-depth keyways or mill flats quickly, without requiring extensive dismantling or costly set-up time. Designed for shaft diameters from 0.75 to 10.5 inches (19.1 to 266.7 mm). REQUEST A QUOTE AVAILABLE FOR RENT.