Material:Tungsten Carbide Use:PCB Drilling ,multilayer FR -4 circuit board specification:0.2~10.5mm price term:price against quantity new:yes delivery time:1~5 day MOQ:50pcs shank:3.175 usage:drill holes name:pcb tungsten carbide drill bit Customized support:OEM Customized support:ODM Customized support:OBM Type:Countersink Drill Bit Type:Gun Drill Bit Use:PCB Drilling Finish:Plain Place of Origin:CN;shenzhen Warranty:none Working Length (mm):30 to 50 MM Q: Are you trading company or manufacturer ? A: We are factory. Q: How long is your delivery time? A: Generally it is 3-7 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity. Q: Do you provide samples ? is it free or extra ? A: Yes, we could offer the sample for free charge but do not pay the cost of freight. Q: What is your MOQ ? A:Each size 50pcs Q: If can be customized ? A:Yes,we can customized according to your requirement Q: What is your terms of payment ? A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shipment.