作者: John Howard Estes
DOI:
关键词:
摘要: A tool for driving and setting nail-pin anchors anchor bolts into concrete, the using percussive action of a rotary hammer drill. The comprises body member with spring, driver, ram inserted member's bore. After hole is drilled insertion anchor, masonry drill bit slid inside bore temporarily locked to tool. activated, turns without affecting or anchor. Instead, force transfers its impact which impacts nail stem bolt, it concrete. keyed bearing can be installed sleeve in order protect tip from shearing.