Page 4 of Torque Products by Cooper Power Tools

utica torque products ® introduction a name you can trust utica products offer high quality solutions for your torque applications ranging from torque screwdrivers click dial and beam wrenches to electronic torque analyzers utica products add value to the assembly process by enabling you to assess control and improve product reliability which leads to customer satisfaction whether the application is cellular phone assembly involving fine threaded screws or an automotive assembly operation fastening bolts utica torque products are the right choice cycles and other application related details to locate your nearest utica service center for calibration simply visit our website at www.uticatools.com ordering information utica products are distributed world-wide to locate your nearest utica distributor visit our website at www.uticatools.com or contact us at 1-800-845-5629 or fax 803 951-7576 well the fastener does its job in the long run if we apply too little torque the fastener can vibrate and eventually loosen on the other hand if we apply too much torque the fastener will over stress and can break or strip the threads either way the fastener doesn t do what its suppose to do ­ hold something together the objective is to apply enough torque to a fastener creating tension that is greater than any external force trying to separate it 10 lbs of force 6 5 ft.lbs 5 lbs of force 12 5 ft.lbs what is torque the concept of torque is a mystery for many people ask a group of people to define torque and you ll probably receive a variety of answers open a dictionary to the definition of torque and you ll be greeted with terms such as torsion axis and vector however if the definition of torque is boiled down to layman s terms it is the measurement of a turning or twisting force a simple example is the force required to turn the head of a bolt on an automobile chassis most tool boxes would include some of the most common tools used to apply torque such as screwdrivers wrenches and impact tools when torque is applied to the head of a bolt during a fastenforce ing process there are actually two main forces torque at work first we are applying a force torque to the bolt head to tighten it the second force at work is the tension or stretch created that runs the length of the tension clamping in bolt bolt these two force forces are closely related the more torque applied to the bolt head the more tension or stretch is applied to the length of the bolt quality our goal is to provide high quality torque tools that will maintain accuracy as long as possible all utica torque products are made of top grade materials working parts are heat treated for added strength and durability each utica torque tool is calibrated according to asme b107.14m before leaving the plant using test equipment traceable to nist certification may be provided with each tool for a nominal charge cooper power tools manufacturing processes are iso 9001 certified which means that the utica brand is manufactured to the highest standards how is torque measured torque is measured by multiplying the amount of force applied by the distance from the point we are turning for instance if we are turning a bolt and apply 5 lbs of force at the end of a wrench measuring 1 ft the torque would equal 5 ft lbs this doesn t tell us what the optimal torque is for the fastener but it does allow us to quantify the amount of torque we are applying to a fastener this warranty does not extend to any product which has been altered or abused warranty torque products excluding accessories are warranted as follows product ­ one 1 year from date of purchase to be free of defects in materials and workmanship calibration ­ ninety 90 days from date of purchase torque range nm 5 calibration intervals as a general rule we recommend calibrating utica torque products every six months however accurate calibration intervals need to be based on quality objectives number of what is the correct torque level for a fastener when an engineer calculates the correct torque level for a fastener several issues must be addressed the first issue is the maximum load that the fastener will experience second is the strength of the material that the fastener will clamp third is whether the joint is hard or soft the fourth issue is the nature of the external force acting on the joint such as vibration pulling or twisting through statistical analysis an engineer can determine the optimal level of torque that should be applied to a joint for maximum performance screwdrivers torque range nm 1000 click wrenches torque range nm dial beam wrenches 4 500 3 200 450 2 400 350 1 100 300 250 .5 50 200 why is torque important when we apply torque to fasteners such as bolts and screws we are actually clamping parts together the amount of torque applied determines how dial in lb scale dial ft lb scale beam 150 .25 20 100 5 1 0 0 50 0 miniature adjustable miniature preset standard adjustable standard preset ratchet head flex head ratchet plain head preset interchangeable interchangeable interchangeable interchangeable head a head b head a head b adjustable adjustable preset preset 4 5

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