Wholesale pearl drill bit, Can drill pearls, gemstone, and many other types of metal; size 0.6mm to 1.5mm with 3 side drilling faceted! about 4.5inch in length!These drill bits are compatible with our pearl drill machine.They are extremely sharp on! NO1:0.6mm NO2:0.8mm NO3:1.0mm NO4:1.2mm NO5:1.5mm NO6:2.0mm NO7:2.5mm The minimum quantity is 10pcs per size,This list price is for 10pcs 0.6mm drilled bit;
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