TECH DATA OF YINHAI MT BIT PHOTOS OF REAL SHOT OF 12 1/4"  BITS FAQ: 1.Q:What types of packing do you offer?    A: Plywood cases free of fumigation;cartons;steel box ,packing could be customized. 2.Q:What is your quality price and services advantages?    A:YINHAI  are 100% factory directly sales,API production workshop standard process guaranteed,Provide customized services for OEM and brand processing.       For the aim of saving the cost of drilling for you, Don't worry about after-sales service. Welcome to book a video-call to inspect factory workshop production line.