Bushing for drill template
作者： Rob Beardmore
DOI:
关键词: Drill 、 Bushing 、 Geology 、 Drill bit 、 Head (vessel) 、 Engineering drawing 、 Drill hole 、 Acoustics
摘要: A bushing for a drill template, the has head portion receipt of motor. The top surface and bottom with at least one pin protruding from portion. fits within secondary opening in template to help retain place. body extends an outer it threaded. through primary hole template. fastening nut having inner threads mates on lock bore bit.
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