Advanced type of taper drill bits when compared with taper chisel bits and taper cross bits. With carbide buttons hot pressed on bits bodies, it has good drilling performance and life time. Usually used for hard or very hard rock formation. Steel body, made by material 40Cr or 42CrMo, heat treatment with 40-44HRC hardness, has high toughness and wearable character. Tip is made from Low press Sintered, and Suitable Grade Selected according to the Target Projects, Which are to make sure the good performance during working. For Areas Using: Milling minerals Cutting routes Cutting in tunnels . For Machines: The products adapt to the machine with all the performance features such as a high feed rate, a long service life and short tool changing times. Together with the parts supply assurance, a high daily production volume, and above-average economy is guaranteed Specification+¬Such as C31HD, U765, U765HD, U85HD, U82 U84, U92, U94, U47, U47HD etc Package+¬in carton Supply ability:10000pcs/month Delivery time:30days Payment terms:T/T or L/C.