| 摘要 |
An adjustable depth-of-drive mechanism for a fastener driving tool having a housing structure defining an axis, and a nosepiece extending generally axially from the housing structure, includes a lower work contact element having a sleeve for reciprocatingly receiving the nosepiece, an upper work contact element attached at a first end to the housing structure, a rotatable thumbwheel assembly having a first portion engageable with the lower work contact element, a thumbwheel assembly accessible by a user and a second portion having at least one detent assembly, and a retaining mechanism for retaining the thumbwheel assembly relative to the upper work contact element where the second portion is received by a second end of the upper work contact element, where during thumbwheel rotation relative to the first portion in either direction, the position of the lower work contact element is moved relative to the nosepiece.
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