Vicmarc Jawset, VM 90/100 Standard
Standard Jaws are supplied with the chuck, but also available to purchase separately.
The sizes indicated on the drawing are when the jaws form a perfect circle. VM90 and VM100 chucks provide approx. 38mm of expansion beyond these specified sizes. The Standard Jaws have an internal dovetail angle of 7 degrees for clamping and an external dovetail angle of 8 degrees for expanding.