| 摘要 |
A nail driving tool includes a plunger rod attached to one end of a cylindrical handle including a radially extending finger guard located at the end of the handle nearer the plunger rod. A guide tube fits slidably on the plunger rod and has a flange extending radially from one end. When the flanged end of the guide tube is adjacent to the handle the plunger rod can be pushed through the guide tube until the driving face of its tip is approximately even with the opposite end of the guide tube. When the plunger rod is inserted into the guide tube with the flanged end away from the handle, the tube end fits to a predetermined depth into a cavity in the handle, exposing the tip of the plunger rod to that extent beyond the flange, for countersinking nails to the predetermined depth.
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