tungsten carbide drill rod for zero slip

{"cid":"91224991","title":"H22 Drill Rod With 7\u00b0 Chisel Bit , High Strength Alloy Steel , Tungsten Carbide Insert For Zero Slip Fit Drilling","imgUrl":"https:\/\/img.chinax.com\/nimg\/d4\/0f\/6abe6a63f1ddf97a02208df5f89b-200x200-1.jpg","attrs":{"Price":"Please contact us","Brand Name":"HLDRILL","Minimum Order Quantity":"10PCS","Delivery Time":"7-15 Days","Certification":"ISO 9001 Certified","Place of Origin":"CHINA","Payment Terms":"T\/T","Supply Ability":"3000 PCS Per month","Packaging Details":"Wooden Boxes, Cardboard Boxes","Product Type":"H22 Drill Rod 7\u00b0 Chisel Bit Set","Material":"High Strength Alloy Steel + Tungsten Carbide Insert","Connection Type":"7\u00b0 Tapered , Zero Slip Fit","Treatment Process":"Induction Heat Treatment","Key Performance":"High Bending Stiffness Impact Fatigue Resistance","Application":"Underground Tunneling Open Pit Mining","Suitable Rock":"Granite , Basalt , Abrasive Formations","Advantage":"Lower Energy Consumption Reduced Downtime","Service Life":"Extended Bit Replacement Interval"}}