Hydraulic chucks are an excellent choice for high accuracy applications due to their ability to maintain runout accuracy over an extended period of time.
There’s more than one way to finish a hole. The most effective option will depend on the number of parts, acceptable cycle time and tolerance callouts.
Coated carbide micro deep hole drills manufactured by SPHINX Tools can reliably create wire EDM starter holes up to 5x faster than traditional wire erosion techniques.