We suggest to make the workbench apron at least 80mm wide, and the vise block is about 30 to 40 cm long.
Improved steel handle screw and pad. Each kit includes stainless rod * 2/ screw rod/ nut/ wooden handle/ front screw * 2/ pin
The stainless rod is 22mm diameter by 300mm long.
The screw rod is 19mm diameter by 260mm long.
These forstner bits are required: 24mm, 3/4", 7/8", 1 3/8".