Mechanick Exercises, or the Doctrine of Handy-Works

Of the Hand-Vice.

There are two types of hand-vices: one is called the broad-jawed hand-vice, and the other the square-nosed hand-vice. The purpose original: "Office" of the hand-vice is to hold small pieces of work that may require frequent turning; it is held in the left hand, and each part of your work is turned upward in sequence so that you can file it with your right hand. The square-nosed hand-vice is rarely used except for filing small spherical original: "Globulous" work, such as the heads of pins that round off toward the edges, etc. This is because the jaws Chaps: the gripping parts or jaws of a tool. do not stick out and get in the way, allowing the flat of the file to reach the edges more easily. Their jaws must be grooved original: "cut"; referring to the teeth or serrations in the jaws for better grip. like the vice mentioned before, and well-tempered Hardened and then reheated to achieve the right balance of strength and flexibility..

Of the Pliers.

Pliers original: "Plyers" are of two types: flat-nosed and round-nosed. Their purpose is to hold and grip all small work and fit it into its place. The round-nosed pliers are used for turning or bending wire original: "Wyer" or small metal plates into a circular shape. The jaws of the flat-nosed pliers must also be grooved and tempered like the jaws of the vice. A marks the nose, B the jaws, C the joint, and D D the handles.

Of the Drill, and Drill-Bow.

Drills are used for making holes that punches cannot easily create, such as in a piece of work that is already finished in its shape and needs one or more holes added to it. In this case, the force of a punch would deform the work, because it would both dent the surface of the iron and stretch its sides outward. Similarly, a punch cannot strike a hole through the shank of a key or any other long hole because the shank is not forged with enough thickness original: "Substance" to withstand the blow; however, the drill, even if your