TECH DATA OF YHA 8 3/4-637G  DESIGN   CAPABILITY  ELEGANT DEMEANOU ON EXHIBITION FAQ: 1.Q:What kind of packing way do you have? A: Wooden case free of fumigation;cartons box and steel box;packing can be customized. 2.Q:What is your price and quality services advantages?   A:We are 100% factory directly sales,API production process guarantee,Provide customized services for brand processing and OEM services.      Reduce the cost of drilling for you, worry free after-sales service.Welcome to make a  video call to inspect factory workshops. we have already builT an outstanding technological innovative R&D department ,  set up professional marketing and management teams TO keep promise for your after sales services. YINHAI Location: -The company is located in Hejian city, 106 national way,Hebei province,where there is the main source of rock bits manufacturing and distribution of China and is only 200km from Beijing Capital International Airport. YINHAI Business: -Our main products include tricone bits (both Steel Milled Tooth and Tungsten Carbide Inserts Bit) from 4 1/2" to 34",PDC bits from 2 7/8” to 26”,piling from 60cm to 200cm,HDD vertical reamer and rock reamer from 8” to 55 inch。. We are competent to design and produce the drilling tools like single cutters,hole openers and other customized bits depending on the utility demand. YH bits have been being sold well and running stably in many areas, such as: the United States, Canada, France, Saudi Arabia, Egypt , Singapore and Russia and so on. -We adhere to the principle of " Win the customer by attractive quality and price" and "Create value for customers by professional technology and experienced service".