TopHammer 2016 | Metalworking | Materials
2018-5-4 · Top hammer drilling tools. ... HOLES A drill string with MF-rods offers stiffer connections due to the 50% reduction in thread play compared to a separate coupling sleeve. Drilling with a stiffer rod package results in improved hole straightness and more efficient and safe bench drilling. ... 38 R32 R38 225 8 55/64 45 1 49/64 7833-4301.
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