With this plate bolted to a table it would seem to me that you would have greater holding power. This vice weighs 40 pounds it is no lightweight. This is a vintage item and it was made in the US probably in the late forties or early fifties.
The screw turns very easily and with a bit of the right lubricant it would turn very very easily. This woodworking vise opens to 12 in.The dog would need to be filed on its four sides in order for it to go completely down. See the photo with my finger attached to the dog.
Someone has banged on it over the years and that peened it down on its top edges. All you need is a metal working file and about 10 minutes of your time..The overall size of the item is 22 by 10 by 6 in. The item "COLUMBIAN 10x4Jaw Plate Under Mount Woodworking Vise Model 10RD-M 12Capacity" is in sale since Monday, December 30, 2019. This item is in the category "Collectibles\Tools, Hardware & Locks\Tools\Carpentry, Woodworking\Vises, Clamps". The seller is "bobwes80-6" and is located in Cobleskill, New York.
This item can be shipped to United States.