Custom CNC Turn Mill 303 Stainless Steel Screw Adjustment SleeveThis precision screw adjustment sleeve is manufactured exclusively by CNC turn mill composite machining. It is a typical complex rotary component that cannot be finished by simple CNC turning. It integrates multi-step shaft body, complex internal spline, evenly distributed circumferential hollow slots and precision fitting holes, with high-precision fit tolerances strictly per customer drawing requirements.CNC