<p>
<font face=""verdana, arial, helvetica, sans-serif"" size=""2"">A Plaster knife is designed to facilitate the cutting down of plaster<sup> </sup>casts and comprises a handle, shaft, removable standardized<sup> </sup>blades, a hand rest for pressure on the blades, an eight<sup> </sup>pointed revolving wheel on the under surface of the shaft, as well as<sup> </sup>a pick at the end of the handle.<sup> </sup></font></p>
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