Therefore, to measure off the Width of four thin Spaces and one sixth Part of a thin Space, lay three thin Spaces, or, which is better, the Letter e, which is three thin Spaces, as aforesaid; and . which is one thin Space and one sixth part of a thin Space, upon one another; for they make together, four thin Spaces, and one sixth part of a thin Space; and the thickness of these two Measures shall be the Heighth of the _Counter-Punch_, between the Footing and the Inner Angle of _A_. And thus, by this Example, you may couple with proper Measures either the whole forty-two, which is the whole Body, or any number of its Parts, as I told you before. This Measure of four thin Spaces and one sixth part of a thin Space is not a Measure, perhaps, used more in the whole Set of Letters to be Cut to the present Body, therefore you need not make a _Standing Gage_ for it; yet a present _Gage_ you must have: Therefore use the _Sliding-Gage_ (described in §. 12. ¶. 4. and _Plate_ 10. at B.) and move the Socket _c c_ on the Beam _a a_, till the Edge of the Sholder of the Square of the Socket at the under-side of the Beam stands just the Width of four thin Spaces and one sixth part of a thin Space, from the Point of the Tooth _b_; which you may do by applying the Measure aforesaid just to the Square and Point of the Tooth; for then if you Screw down the Screw in the upper-side of the Sliding Socket, it will fasten the Square at that distance from the Point of the Tooth. And by again applying the side of the Square to the Foot of the Face of the _Counter-Punch_, you may with the Tooth describe a small race, which will be the exact Heighth of the _Counter-Punch_ for _A_. But _A_ hath a Fine stroak within it, reaching from Side to Side, which by the large Draft of _A_, you may find that the middle of this cross stroak is two Thin Spaces above the bottom of this _Counter-Punch_; and with your common _Sliding-Gage_ measure that distance as before, and set off that distance also on the Face of your _Counter-Punch_. Then with the edge of a Fine _Knife-File_, File straight down in that race, about the depth of a Thin Space, or somewhat more; So shall the _Counter-Punch_ for _A_ be finisht. But you may if you will, take off the Edges or Sholder round about the Face of the _Counter-Punch_, almost so deep as you intend to strike it into the _Punch_: for then the Face of the _Counter-Punch_ being Filed more to a Point, will easier enter the _Punch_ than the broad Flat-Face. But note, That if it be a very Small Bodied _A_ you would make, the Edge of a Thin _Knife-File_ may make too wide a Groove: In this case you must take a peece of a well-Temper’d broken Knife, and strike its Edge into the Face of the _Counter-Punch_, as aforesaid. ¶. 3. _Of Sinking the_ Counter-Punches.