The diamond drilling bit is installed on angle grinder to drill faucet holes, with different required diameters. We manufacture drilling bits according to the stone materials that you need to drill, because different stone materials have little different requirements on drilling bits performance. 
                                                                                                 								  
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									                                      diamond drilling bit
                                                                        angle grinder drilling tool
                                                                        faucet hole drilling tool
                                    								  
								   
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