that are very handy for roughing off metal, and others may be made any shape to suit the job. Ten or twelve teeth per inch will be about right.
Before trying to hold a barrel or a finished stock in the vise, make a pair of VISE-BLOCKS like Figure 21. Saw these from hardwood about 7/8 inch thick, and glue heavy felt (1/2 inch thick) to their faces. The notch rides over the sliding bar of the moveable jaw, and the felt absolutely protects the finish of parts and prevents it being marred, yet the vise can be set up very tight if necessary.
Also make FALSE VISE-JAWS for holding small metal parts without marring, by bending pieces of heavy sheet brass or copper to hang on the vise-jaws. False jaws of lead or babbit are also very useful at times. These are easily made as follows: Unscrew the
vise so the jaws are about 3/8 inch apart. Get a lump of stiff clay and pack it against the opening at each end, letting it extend like a box about 1/4 inch above one jaw, and across the jaw about an inch from the edge. Also pack clay under the opening between the jaws. This forms a mould into which the lead is poured. When cool, loosen the vise slightly and lift it out; cast another one in the same way, and you have one for each vise-jaw. With these lead jaws heavy pressure may be applied to hold parts without damaging them; moreover, parts that are so shaped that the regular vise-jaws will not grip them, are easily held rigid in these lead jaws.
The average man would be stumped at the problem of holding a shotgun trigger guard, for example, without bending it in the vise! The gunsmith shapes up two pieces of wood to fit the shape of guard, and fastens the ends together, making the false vise shown in Figure 22. The guard is placed between the wood jaws which are then clamped in the vise, and the guard held firmly for filing. The same idea may be adapted to any thin parts, and is particularly useful tor filing flat springs which might be damaged if straightened out in the vise.
SCREW VISES: Cutting down a small screw to very short
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