When they _File_ it Flat by Hand, they Screw the Shank of the Punch perpendicularly upright into the Chaps of the Vice, and with a _Flat-Bastard-Cut-File_, of about Four Inches long, or if the Punch be large, the File larger, according to discretion, and File upon the Face, as was shewn _Numb._ I. _fol._ 15, 16. Then they take it out of the Vice again, and holding up the Face Horizontally between the Sight and the Light, examine by nice observing whether none of its Angles or Sides are too high or too low. And then Screwing it in the Vice again, as before, with a _Smooth-Cut-File_, he at once both Files down the Higher Sides or Angles, and Smoothens the Face of the Punch. But yet is not this Face so perfectly Flatned, but that perhaps the middle of it rises more or less, above the Sides: And then he Screws it in his _Hand-Vice_, and leans the Shank of the Punch against the Tach, pretty near upright, and so as he may best command it, and with a _Watch-Makers Half-Round-Sharp-Cut-File_, Files upon it with the Flat-Side of his File; But so that he scarce makes his forward and backward Stroaks longer than the breadth of the Face of his Punch, lest in a long Stroak, the hither or farther end of his File should Mount or Dip, and therefore keeps his File, with the Ball of his Finger upon it, close to the Face of the Punch. Then with the Liner he examines how Flat the Face of the Punch is, and if it be not yet Flat, as perhaps it will not be in several Trials, he again reiterates the last process with the _Small-Half-Round-File_, till it be Flat. But he often Files cross the Furrows of the File, as well because it makes more riddance, as because he may better discern how the File bears on the Face of the Punch. When it is Flat, he takes a Small well-worn Half-Round-File, and working (as before) with the _Sharp-Cut-File_, he Smoothens the Face of the Punch.