Saw 
A cutting tool of different sizes and shapes, consisting of a thin bade or disk of metal, with an edge of a series of sharp teeth, which can be worked by hand or machinery. 

Saw Arbor 
The shaft, which is turned by a motor, on which the blade of a power driven circular saw is mounted. 

Saw, Back 
Hand saw with fine teeth and a stiffened back on the blade, which is used with a miter box to cut angles. 

Saw Blade 
The cutting portion of a saw.

Saw Buck 
Brace for wood cutting, which is made of two sets of 2 x 4's which are connected in two X-shaped sections, hinged where the legs cross, and are then connected from center joint to center joint by an additional piece so that they can stand upright to hold a length of wood. 

Saw, Chain 
Power saw that consists of a cutting chain of a number of pinned together, flexible links, which travel around the guide bar. The inside surface of the chain have the tangs which ride in a groove along the length of the bar guide, holding the chain in place. The outside length of the chain has the cutting teeth spaced along its length. Chain saws are used for rough sawing. 

Saw, Circular 
Hand-held power saw that has a flat, circular blade attached to a shaft that is worked by a motor. Commonly used for construction, the cutting action of the blade is provided by the teeth on the outside diameter of the blade. 

Saw, Coping 
Saw, used for cutting curves and coped joints, it has a narrow blade with fine teeth which is stretch between the ends of a U shaped handle. 

Saw, Crosscut
Saw which has teeth set with every other one bent a little to the right or left to make fast cuts. Used to cut across the grain of wood. 

Saw File
File that is made to sharpen saw blades. 

Saw Horse
Movable, trestle type bench that supports the work being cut. 

Saw Kerf 
A cut or groove that is the width of a saw blade. 

Saw, Keyhole 
Handsaw with a blade tapered to a point so that it can fit into a drilled hole to make a cut that doesn't extend to the materials edge. 

Saw, Reciprocating
Power saw whose blade moves back and forth along the axis of the blade. 

Saw, Rip
Saw whose teeth are positioned to cut with the grain of the wood. 

Saw, Saber 
Portable power saw, with a narrow blade, which moves back and forth to make cuts. The blades which are held by a vertical collar with an attached metal shoe that rest on the work in progress, can be changed to suit the various materials to be cut. The blades of 5/16 of an inch or less are suited to cut around curves and corners and the vertical collar can hold the blade at different angles to the work, allowing flexibility to turn the blade in a different direction from the saw body. 

Saw Set 
Tool used to set the saw teeth at the correct angle to the plane of the blade so that the saw can cut without binding. 

Saw Teeth
Points on a saw blade that do the cutting. 

Saw-tooth Roof 
Pitched roof that looks like a saw. 

Saw Vise
Vise which holds a blade firmly enough to be sharpened without causing damage to the blade.

S-Beam 
Structural steel beam with a letter S shaped cross-section. S-beams are used for support with long spans such as basement beams or over wide openings. S-beams should always be slightly larger than the calculated size, ensuring enough strength for the weight it will support. 

SBA
see Small Business Administration