Fits most common small to mid size metal lathes with 8" to 16" chuck diameters. The design allows the depth to be adjusted by 4". The slotted mounting brackets also provide some adjustment when installing. Available with or without a safety interlock switch. Select on drop down menu. Switch specs: 120/230VAC/24V DC, 3 amps. Safety switches require some form of motor control to adapt to your 3 phase machine. Constructed from 11 ga. Mild steel, Powder coated "OSHA Safety Orange" 8" Wide Zinc alloy steel friction hinges on standard model 40x80mm aluminum extrusion horizontal mounting rail = 35" long Mounts onto the lathes gearbox by using the adjustable brackets to bolt into the machine's existing gearbox bolt holes. Customer supplies bolts approximately 3/4" longer than the existing ones.