in fact it’s not a dowel, but a Concealled Leveller that requires to make a vertical hole of 12mm / 1/2" at the end of a long pole so I can’t put it in a drill press.
in fact it’s not a dowel, but a Concealled Leveller that requires to make a vertical hole of 12mm / 1/2" at the end of a long pole so I can’t put it in a drill press.