The 9066-XYZ-L Left-Handed Stainless Steel Crossed-Roller XYZ Translation Stage is a 0.5 inch travel linear translation stage that allows you to adjust the back actuator with your left hand and adjust the side actuator with your right hand. 9066 series stages feature a generous pattern of eight 4-40. ten 8-32 and three 1/4-20 threaded mounting holes. Actuators are not included. Please see specifications for recommended actuators.