Scribing-block or surface-gauge. A tool that carries a needle or scriber for marking on work lines denoting its finished size or the amount of metal that is to be cut off, and that is also used for setting work.
Second-cut file. A file whose teeth are coarser than a smooth file and finer than a bastard file.
Sector. A device used in connection with an index plate to denote the holes to be used in any particular division of a circle.
Segment. A piece having the shape of a segment of a circle, used for building up a hollow cylinder.
Segmental saw. A saw that is composed of parts secured to a frame or disc.
Self-acting lathe. A lathe having an automatic feed motion for the cutting tool.
Set. 1. The bend to one side of the body of the blade of the teeth of saws. 2. Adjustment or alignment. 3. Binding two pieces together.
Set-screw. A screw that binds or secures two pieces together by being screwed through one piece and against the other.
Shafting-rest. A slide rest carrying several cutting tools and usually employed for turning shafting in the lathe.
Shake. A crack in timber.