| 摘要 |
A bolt hole marking device comprising a tubular body having a top and a bottom, an elongated base plate having a upper surface, a rod fitted within the tubular body having a gripping end and a pointed end and at least two discs rotatably mounted on the base plate one on each end. The upper surface of the base plate having two ends, at least two pegs positioned, one on each end and extending perpendicular to the base plate and at least one aperture at a predetermined distance between the pegs. The bottom of the tubular body is positioned over the aperture and affixed to the base plate. The pointed end of the rod may be extended beyond the bottom of the tubular body. The at least two discs having a plurality of recesses of different radii formed therein arranged about the periphery of the discs and a plurality of apertures able to receive the pegs for fixing the discs in position on the base plate.
|
