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A set of metric spanners or wrenches, open at one end and box/ring at the other. These are commonly known as “combination” spanners. A wrench or spanner is a tool used to provide grip and mechanical advantage in applying torque to turn objects—usually rotary fasteners, such as nuts and bolts—or keep them from turning.
A socket wrench (or socket spanner) is a type of spanner (or wrench [1] in North American English) that uses a closed socket format, rather than a typical open wrench/spanner to turn a fastener, typically in the form of a nut or bolt. [2] The most prevalent form is the ratcheting socket wrench, often informally called a ratchet.
The peculiar feature of closed-end credits is that they preserve the same interest rate level and the loan principal is not increased after the disbursement of funds or after the partial repayment. Opposed to closed-end credits there are also open-end credits that are also known as revolving credit [1] lines. The most widespread among them are ...
An adjustable spanner (UK and most other English-speaking countries), also called a shifting spanner (Australia and New Zealand) [1] or adjustable wrench (US and Canada), [a] is any of various styles of spanner (wrench) with a movable jaw, allowing it to be used with different sizes of fastener head (nut, bolt, etc.) rather than just one fastener size, as with a conventional fixed spanner.
Open doors without knobs, ventilation accesses and closets containing firefighting equipment in some public locations (5×5mm to 8×8mm square female wrenches); Open dry risers (12.5×12.5mm square female wrench); Open bathroom and toilet doors (screwdriver); and; Remove nuts and bolts (13, 17 and 19mm six-point wrenches).
Locking pliers (also called Vise-Grips, Mole wrench or Mole grips) are pliers that can be locked into position, using an "over-center" cam action. Locking pliers are available with many different jaw styles, such as needle-nose pliers, wrenches, clamps and various shapes to fix metal parts for welding.
There are two main types of tap wrenches: double-end adjustable wrenches and T-handle wrenches. Double-end adjustable wrenches, also known as bar wrenches, have one threaded handle which is attached to one of the clamps. The clamp is opened to insert the tool and then tightened down against the tool to secure it. This type of tap wrench is used ...
The rotary force is transmitted through wedges that fit into two or three open grooves. The bit is free to move a short distance and the hammer action moves the bit up and down within the chuck. Two sprung balls fit into closed grooves, allowing movement whilst retaining the bit. There are four standard sizes with varying shank diameters: SDS Quick