Spanners, Sockets and Wrenches.
Types of Spanner
A torque wrench is usually used with a socket, it allows a defined torque to be applied to a nut or bolt.
This is needed for a variety of reasons which include:
Protecting threads from damage in softer materials like Aluminium
This is a very specialized wrench, designed for gripping and turning the compression nuts that make the joint between water pipe and a tap.
It is also used on the larger nut that clamps the tap on to the basin or bath.
It's not difficult to imagine the cramped spaces that these are used in. To make them as useful as possible, the shaft can be telescopically extended and the jaws swivel for either tightening or loosening nuts.
Making sure even pressure is applied over an area. For instance when tightening the nuts on a cylinder head to evenly clamp down on the cylinder head gasket
Protecting the nut or bolt from damage due to over-tightening
Stillson wrench (Pipe wrench)
This is a tool that is designed to grip and turn pipe and fittings. The jaws are hardened and have quite agressive teeth that bite into to the surface of the pipe or fitting leaving marks.
Because of the damage it causes, it is not ideal for use on nuts and bolts, but it does work well on already damaged or heavily corroded nuts and bolts.
Immersion heater spanner
This spanner is totally dedicated to the removal of the immersion heater element in a hot water cylinder
The C.K Bush Wrench is a patented product and its innovative head design allows for all sizes of conduit bushes to be tightened/untightened even with cabling in place. Zinc phosphate coated, tough alloy steel for increased strength and durability. It has a soft grip, tri-lobe handle for exceptional comfort and control.
Watch the video below to see how this handy tool is used: