subject: Drill Chuck Compatibility: Shank Sizes & Machine Types [print this page] Understanding Drill Chuck Fitment for Different Machines Choosing the correct Drill Chuck for a machine involves more than matching its size to a drill bit. The mounting interface, shank dimensions, machine type, and intended application all affect compatibility. Using the wrong combination can cause poor clamping, runout, vibration, or tool slippage. Understanding these factors helps operators select suitable equipment for workshop drilling and precision machining.