Bernstein Pliers Brochure Page 4
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[email protected] DIFFERENCES OF THE PLIERS MATERIALS Lap joint Depending on the model and the requirements, we use high-alloyed tool steels or high-grade ball bearing steel (chrome steel) from selected suppliers. For a single joint, the joint surfaces are also milled out so that the halves fit into one another and can be connected using a hinge pin. CONSTRUCTION Box joint We manufacture pliers with four different joint constructions (joint) depending on the application and design of the pliers. Lay-on joint The simplest form for joining the two halves of a pair of pliers is the lap joint. Here, the levers are put on top of each other and connected by a hinge pin. This construction is only used for very crude pliers. The most complex construction is the box joint.In a very special process, one lever is passed through the joint of the other lever which is opened using heat. The joint is then pressed together and connected with a pin. This construction ensures the best parallel motion of the tips and an extremely long service life. Screw joint The screw joint is manufactured with highly precise joint surfaces, ensuring smooth motion of the pliers and a uniform, low-friction open-close movement. In combination with the basic hardness of the high-quality chrome-vanadium ball bearing steel, the screw design provides a very high cutting performance with a long service life. LAY-ON JOINT LAP JOINT BOX JOINT SCREWED JOINT GRAPHIC REPRESENTATION OF THE JOINTS
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