Alfa International 12 3/16 HBLS L & W Chopper Plate. Hub size 12, 3/16" hole size, made of chrome/vanadium alloy steel for durability. Using computerized drilling for plate-to-plate conformity, the maximum number of holes are drilled into each Plate to provide for greater production and cooler, more efficient cutting. Alfa Plates are also economical because our Hubless Plates can be used on both sides and will fit many different brands of Choppers. Replaces Hobart #P-16424-1.