Triples the height of Bench Cookie® Plus discs when threaded into the centre insert. Raises workpieces for working with saws and other tools that require extra height. Fits 19mm (3/4″) Bench Dog holes or 19mm (3/4″) holes drilled into sawhorses or other fixtures. Triples the height of Bench Cookie® Plus discs when threaded into the centre insert. Raises workpieces for working with saws and other tools that require extra height. Fits 19mm (3/4″) Bench Dog holes or 19mm (3/4″) holes drilled into sawhorses or other fixtures.