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Contact us:

-If you want to place a large order for wholesale, please feel free to contact us.

-If you need to order multiple items, pleases let us know first. We can offer you some discount.

Factory outlet：

1). Ensure high quality and fastest logistics service. Let every customer can shopping happily.
2). Each product is carefully checked and tested by the testing department before shipment to prevent any errors. Please rest assured that customers purchase.
3). After placing the order, we promise to deliver the goods within 24 hours and provide the logistics number. (Except for major holidays)Package include:1 pc Drill BitMain products: electroplated diamond drill bit, hot-pressed diamond drill bit, PDC drill bit, composite drill bit (slice / small tooth / half piece / flat piece / triangle / bread ball / steel plate / blade piece /), composite piece pineapple bit, Composite sheet inverted triangle fast drill bit, high and low rib reaming drill bit, coreless drill bit (three wings / four wings / multi-wing concave, scraper) and other special shaped bit series. Advantage:1. Long life of the drill bit: Since the wear ratio of the diamond composite sheet as the cutting tooth is 20-40 times higher than that of the cemented carbide, it is more than 10 times that of the ordinary diamond drill bit, so the service life is greatly prolonged;2, the drilling efficiency is high: the diamond exposure is large (the composite polycrystalline layer is almost completely exposed), the drill bit can always keep sharp, thus greatly improving the footage speed;3, can be low pressure, low speed drilling: the drill bit is scraped and sheared to crush the rock, and the drilling pressure is only about 1/3 of the same diameter diamond impregnated drill bit;4, good diameter-keeping effect: the inside and outside of the composite drill bit can be set with diamond polycrystalline diameter, strong wear resistance, good diameter-keeping performance, and can make efficient use of cutting teeth.5, a wide range of use: Practice has proved that the drill bit is suitable for the drilling of carbonate, limestone, white rock, clay rock, siltstone, sandstone and other soft, medium-hard (rockable below 9 grade rock formation) strata. Compared with the general drill bit, especially the rock formation of 6-8 grades, the effect is particularly significant;6. Due to the fast drilling speed and long service life, the number of starting and lower drilling is small, the drilling cost is greatly reduced,Cost-effective. Specification model:You can use 50 drill rods or 42 drill rods or 60 drill rods. Please note when placing an order. If there are no remarks, we will send the drill pipe thread specifications randomly.The diameter of the above drill bits is the national standard interface. If you need special interface or diameter, you need to contact our factory to order.
1,Feedback:-All products are 100% original new and tested again before shipment.Customers' satisfactory is our goal.-Any feedback from you will be much appreciated. If you're satisfied with our service or products, please give us 5 stars.-If you have any questions, please contact with us, and we will get back to you sooner. 2,Payment: -We accept the following payment methods:-Credit Card, WeChat Pay, VISA, Bank to Bank Wire Transfers,PayPal, Western Union and so on. -All payments made on AliExpress are processed by Alipay and PayPal. 3,Shipping: -Please pay more attention to your order address which MUST MATCH your shipping address.-Shipping will be worldwide via: e-Packet / China post air mail/ CDEK / ARAMEX/ EMS / UPS / FEDEX / DHL / TNT.-Remote area may cause extra shipping fee. -Please check items when delivered, if damaged, please kindly accept it and contact us immediately.We will make a confirmation and resend you a new one. 4,Warranty : -Manufacture Warranty: -Defective problem has to be submitted within 7 business days after product is delivered; -Shipping damage has to be submitted within 5 business days after product is delivered.-Please show us photo or video if happens problems on products. 5,Contact us: -If you want to place a large order for wholesale, please feel free to contact us. -If you need to order multiple items, pleases let us know first. We can offer you some discount.