7 S shop drilling tools supplier
Dedicated to being your preferred supplier of rock drill products
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418Threaded cylindrical drill bits are produced from high-quality steel imported from the United States and domestically produced high-quality alloys. All drill bits are produced using the hot-set tooth process. Our company provides the following specifications and models of cylindrical drill bits: Thread models: R25, R28, SSR28, R32,
Threaded cylindrical drill bits are produced from high-quality steel imported from the United States and domestically produced high-quality alloys. All drill bits are produced using the hot-set tooth process. Our company provides the following specifications and models of cylindrical drill bits: Thread models: R25, R28, SSR28, R32, SSR32 , R35, SSR35, R38, T38, T45, T51, SST58, SST68, SGT60;
Drill bit diameter: 33mm~152mm;
Drill bit design: flat, concave, universal surface
