![]() There are five types of SDS shanks, however, only two of them have gained popularity: SDS max and SDS plus. They have several grooves designed to transmit shock vibration effectively as well as rotation. The main feature of drill bits is the shape of their shanks. Modern technologies make it possible to produce inserts from the improved tungsten-cobalt alloy. The main material for production of carbide inserts is the alloy based on tungsten and cobalt. Peculiarities of SDS plus drill bits for concrete The cutting surface of such a product has reverse sharpening. For these purposes, drill bits for concrete are improved with cemented metal carbide tips. As a result, a tool for drilling must possess enhanced technical characteristics. The drill bit 8x250x310 mm is designed to drill holes in unreinforced concrete, brick, sand and gravel mix and other Ĭoncrete is one of the most durable materials, therefore it is very difficult to drill even the smallest hole in it.
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