Their lever action is stronger than that of ordinary pliers, so they can apply much more force.The jaws are then closed on the gripped object.īecause of the lever action the jaws move only slightly but with much force. The bolt is used to set the jaws to a size slightly smaller than what is to be gripped. Locking pliers being used as a substitute knob on an espresso machine. In many modern versions an additional inner lever aids release. The inherent flexibility of the pliers maintains a spring pressure on the jaws such that the handle needs to be pulled open to release the clamping pressure. This means that to open the jaws have to be tightened, thus maintaining the clamping pressure. In the process of being closed on an object the mechanism passes through a point of maximum tightest clamping and as the handle levers are closed further, the jaws release slightly. After being properly adjusted using a threaded screw, the pliers are brought to bear by cam action. Locking pliers remain clamped to an object without requiring continuous pressure on the handles based on the "over-center" principle. This is the current spelling in the English speaking world except for the United States. The spelling " vice" can be traced back to 1584, for the clamping sense of the word. This spelling is orthodox in the United States. The spelling " vise" is mentioned in Samuel Johnson's 1755 dictionary. The same is true in the United Kingdom of the brand name " Mole Wrench". In the United States, the brand name " Vise Grips" is close to a generic name for this type of pliers.
Later, in 1955, in the United Kingdom, M K Mole and Son, a hand tool manufacturing company, under the managing direction of Thomas Coughtrie, began making nearly identical pliers. Petersen in De Witt, Nebraska, United States in 1924. The first locking pliers, with the trade name Vise-Grip, were invented by William S. Also, part of the shipping costs, involves HANDLING costs, that include the cost of shipping supplies.Locking pliers have a lever (on lower arm, right) to aid release from the locked position With additional purchases, weight is increased, larger packaging is involved, hence, an increase in the cost of shipping occurs, and shipping rates are constantly on the rise. Shipping discounts are not given, on the sale of knives, etc.
CLEAR EXPLANATION OF SHIPPING AND HANDLING CHARGES- Bidding on an item(s), has indicated that the information below, has been read, understood, and accepted. All measurements and weights are approximate. Look closely at the photos, read the description, and should there be questions, ask prior to bidding. All items are final sale, with no refunds or returns. I describe items being sold, as honestly and accurately as possible. I am not an expert, and have only acquired knowledge regarding my product, via research and discussions with others. *AS WITH ANY VINTAGE OR PRE-OWNED ITEM, EVIDENCE OF AGE, WEAR AND USE, MAY EXIST.* SHIPMENTS TO USA ONLY. Some additional cleaning may be necessary for those who enjoy perfection. This is an AIRPORT confiscated lected for its quality. Contains.vise grip pliers, regular pliers, Phillips screwdriver, cap lifter, wire stripper, file, knife blade, can opener, slotted screwdrivers, glass breaker. SHEFFIELD VISE GRIP MULTI TOOL Stainless steel.6 1/2 inches closed. Ergonomic and rubber textured for secure grip. Length Closed: 6 3/4 inchesComponents: Cresent wrench, Needlenose pliers, regular pliers, wire cutter, file, slotted screwdriver, serrated blade, wood saw, knife blade. HUSKY HEAVY DUTY PLIERS / CRESENT WRENCH MULTI TOOL Excellent condition. HUSKY IS THE TOOL BRAND OF THE HOME DEPOT.
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