It must still be observed that tooling with lukewarm tools must be done slowly, and with hot tools quickly. Nearly all inexperienced finishers use too hot tools.
Fig. 82—Leather binding with fern motive done in the Düsseldorf Technical School.
So far, we have dealt with the preparation for finishing and tooling with a roll. Besides this tool there are fillets, gouges, and dies, all nearly the same, being dies, and only differing in shape. Nearly all beginners are unreasonably afraid to use the gouge. Any one able to use the roll properly will have little difficulty with the gouges. A genuine technical difficulty does arise when only a small portion of a curve may be worked (which frequently happens) on account of its having to be joined to another. Moreover, the joining of one curve to another must not be seen.
Every single gouge of the complete set (it should contain at least 20 pieces) forms the quarter of a circle. The gouges are chosen according to the design, so that the tools placed thereon cover the outlined design exactly, and the tool numbers are noted on the designs so that they may be quickly and surely picked up when required for use.
The tyro is apt to select sizes too large and to print the curve sloping instead of perpendicular; this must be guarded against.
Double gouges are not easily used in the same way, as the joinings cannot be concealed; they may be used for making first outlines, which must be finished with single curves.
Fig. 83—Simple gold tooling on squares.
Faulty places must be done over and over again until the whole is perfect and brilliant and all the gold adhering.