The back plate has a 13., 9 mm small spigot that helps it in centrally locate it in the center of the Rotary Table. Chuck body is made of high quality nodular cast iron suitable for high rotation speed. Chuck Outside Dia. : 3 (80mm). Chuck Body Thickness: 2 (50mm 80 mm 3 jaw self centering chuck with spare set of reversible jaws and a chuck key, Also included a suitable steel back plate with fixing t nuts and bolts to enable this to mount it on this., 3 /80 mm Rotary table. HV6 Rotary Table 3 Jaw Chuck Mounted on Back Plate Lathe Chuck With Back Plate New 3 Jaw Chuck 80mm Self Centering With Back Plate Suitable For 4" Rotary Table Self Centering Chuck The back plate has a 13., 9 mm small spigot that helps it in centrally locate it in the center of the Rotary Table., 3 /80 mm Rotary table. 3 Jaw Self-Centering Lathe Chuck 80 mm Steel The Chuck body is made of high grain casting and the jaws are made of hardened tool steel for a long life. The Back plate is drilled with M6 size tapped holes for the chuck's bolts to be screwed with the back plate and then provided with 2 counter drills to them clamp it with the Rotary table's T slots.
