Shank-mill. A milling machine cutter that is provided with a shank or stem.
Shaper-centres. A chuck in which the work is held between centres.
Shaper or shaping-machine. 1. A machine for cutting such surfaces on iron work as can be cut by a tool travelling in a straight line. 2. A woodworking machine in which cutting tools are revolved on an upright spindle projecting above a work table.
Shavings. The cuttings from a paring tool.
Shell. 1. The body of a steam-boiler. 2. An outer casing.
Shell-reamer. A short reamer that is driven by fitting to a coned mandrel.
Shimer-heads. A form of cutter head for woodworking machines, in which circular cutters are used.
Shingle saw. A saw thick in the body and beveled off for about two or three inches of its outer diameter.
Shooting-board. A device upon which pieces are held when required to have their ends dressed to exact shape or angle.
Shrinkage-fit or contraction-fit. A means of securing two pieces together by leaving the hole of one too small to receive the other, and then expanding the piece containing the hole so that it will go on and bind fast as it cools and contracts.