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The use of a torque wrench is advisable wherever a joint requires tightening to a specified torque. If the torque wrench is correctly set, it trips when that torque is reached and displays the correct torque value. This is an important basic prerequisite to achieve the correct target torque. But that alone is sometimes not enough: another crucial...

Basically, there are seven widely used types of wrenches: open-ended and double-ended spanners, sockets and nut spinners, ratchet ring spanners, monkey wrench - english model, monkey wrench - french model, pliers wrenches, box spanners

Every well-stocked toolbox contains at least one ratchet. There is a good reason for this: unlike a screwdriver, a ratchet can be used to tighten fasteners with ease, even in confined spaces.   Definition: what is a ratchet? In toolmaking, a ratchet or reversible ratchet is a tightening tool that applies torque in one direction only, so there...

To make a secure bolted connection, it is not only the size of the tool (profile size) that matters – it's just as important to know the most common fastener profiles, their advantages and disadvantages. The following article presents the most important types of fastener heads: Slotted-head screw Cross-slotted screw head (Phillips recess,...

Many mechanical click-type torque wrenches are fitted with a compression spring mechanism. For torque wrenches that use that mechanism, users should reset the torque wrench to »0«, or the smallest value that can be set, if the wrench is not to be used for a while. If it is not reset, there is a real danger that the compression spring will be...