Casting Multistep Tungsten Carbide Cross Drill Bits  

No. Products Nominal Thread Hole Diameter mm Article Regular 1 Multistep Cross Bit R76 130 JBR76130MCB 2 JBR76130MCB-Jetting 3 150 JBR76150MCB 4 JBR76150MCB-Jetting 5 175 JBR76175MCB 6 JBR76175MCB-Jetting Raw Material Production Process Surface Treatment Carbon steel Machining Antirust Alloy steel water glass Investment Casting Electro-galvanized Stainless steel…