Product Description reasonable price factory supply coal mine PDC anchor drill bit.

PDC Anchor Bit/ PDC Roof Bit/ Coal Mining Bit/ PDC anchor shank drill bit is made by  premium PDC cutter, with high abrasion resistance, impact resistance and drilling efficiency. Its life is 10-30 times of alloy bit, could be applied to rock formation f≤14, like conglomerate, granite, limestone, etc.

Application: To be used for the bolt-mesh support for the coal mine, dam and roadway construction etc；

Standard Size: Diameter: 25, 26, 27, 28, 29, 30, 32, 36, 42mm；

Thread Sizes: M14*1.5, M12*2, M16*1.5, M16*2, R thread；  

Note: We also can produce and design as per clients’ drawings/samples/requirements;