
opal cutting using flat lap machines johnos opals. may 05, 2015 4 wheel grinding machine. the grinder set up now has 3 cutting wheels and a leather polishing wheel which i added. opal polishing disc. flat lap machine. another piece of equipment i purchased was a faceting machine made by a member of the nunawading lapidary club.,used gear grinding machines for sale exapro,oerlikon maag opal 800 gear grinding machine. year -location czech republic. price on request gleason 116 gear grinding machine. gleason 116 gear grinding machine year 1976. location russia. 10,500 max wheel 457 mm cnc type