Self-drilling Anchor Accessories multistep cross Drill Bits  

Key Specifications: Hole: 130 to 175mm Thread type: R76 Raw material: alloy, carbon, carbide, stainless Production process: casting, forging, machining, welding Surface treatment: antirust, electro-galvanized, spray-paint, black coating, dacromet J.B multistep Drill Bits are popular among construction fields, which have high technology, high drilling efficiency and long grinding time. High quality materials and professional design, as well as advanced manufacturing technologies result in fast penetration, good performance and long service life. Our drilling tools are widely used for drilling and quarrying in mining industries and other construction fields. No. Products Nominal Thread Hole Diameter mm Article Regular 1 Multistep Cross Bit R76 130…