Tool Set of 4" Regular Rotary Table with 70 mm 4 Jaws Independent Chuck with Back Plate & fixingsT nut Bolts Chuck Body is High Grain SG Caste Iron & Jaws are of Tool Steel. Jaws are Hardened & Ground. A Tool Steel Back Plate is supplied with Fixing T nuts to Mount the Chuck on It. Back Plate is Drill in a manner that it will fit both 3 as well as 4 slots Table. The Back side of the Plate has a locating Spigot to center the Mounting on to the Table. It can be mounted both in Horizontal & vertical position. Hand wheel is graduated in divisions of 10 min & can be set to zero.