What is meant by the term straddle milling?

Straddle milling is a machining process in which two or more parallel vertical surfaces are milled simultaneously using a milling machine. This is achieved by positioning two side milling cutters on either side of the workpiece, allowing for efficient removal of material from both sides in a single operation. Straddle milling is commonly used to create features such as grooves or slots that require precise alignment and uniformity. This technique enhances productivity and ensures consistent dimensions in the finished part.