vacuum brazed 40mm working length for hard rock diamond core drill bit

Whatever materials you want to drill,

      I do it in the quickest way out of your imagination!

Vacuum brazed technology provides fast,all-purpose drilling.

Greatly reduce the cost of drilling and improve efficiency.

1.T/T: in advance or 30% payment in advance and the rest 70% before shipping.

2. L/C: irrevocable L/C at sight.

3. Western Union,MoneyGram: 30% payment in advance and the rest 70% before shipping.

4.Paypal: 30% payment in advance and the rest 70% before shipping, and customer pay 5% bank fees 

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