the Drill Bits are made from grade hard alloy and special steel, generally matched with the light-duty rock drill, to drill the rock hole within diameter of 50mm. the drill tools are used in metallurgy mine, geological exploration, water conservancy construction, electricity, traffic, tunnel, quarry, national defence stone project etc.

Q1: What'S your delivery time?

A: Commonly product need 20 days to produce, within 3 days if in stock.

Q2: What'S methods of payments are accepted?

A: We agree T/T,L/C,West Union,One touch,Money Gram,Paypal.

Q3: What about the Shipments?

A: Bases on other quantity.We can send it to you by Express,by Air,by Sea,and by Train.or send the goods to your Chinese agent.

Q4: how to control the quality?

A: We should be checking & testing everyone button bit before shipment.

Q5: Do you agree sample order?

A: Yes,we are welcome your sample order to testing our quality.

Q6: Can we select the button bit color?

A: Yes,we have golden,silvery,black and blue for your choice.

Q7: Can we change to our mark on the button bit?

A: Yes,we can casting your company mark on the button bit.(Except sample order)

Q8: Do you have after-sale service and warranty service?

A: Any Quality or quantity problem once confirmed,we will be compensate you the same. Any question or problem we will be reply you within 24 hours.

Q9: Can I trust your company?

A: Our company has been certificated by Chinese government,and verified by Ali baba Trade Assurance. 100% refund of the Trade Assurance Amount.Ali baba can guarantee all of you payment.Just order from US!