... Tolerance +/- 0.05mm 3,Surface smoothing 4,High hardness Wooden dowel Process 1,Chooses the hard wood,undergoes disinfection treatment,mothproof ... make sure the drill is smaller 0.2mm than wooden dowel,when namely uses the 8mm cork,the hole must be ... 7.8mm,wooden Dowel can completely with plate,guaranteed that product reliable solid ) . 5 ...