Six pack of metal dowel centre points of diameter 6mm 8mm 10mm pair of 6mm 8mm and 10mm diameter dowel centres fit into blind holes to allow lining up for the mating hole place end of dowel centre in the bored dowel hole in one piece of wood place the second piece of wood in the required position and press the dowel centre point will leave a centre for the second hole accurately marked whats included2 x 6mm centres2 x 8mm centres2 x 10mm centres specifications dia6 mm dia8 mm dia10 mm