A wall chaser is an electrical tool that cuts channels in masonry walls for electrical cables or pipes. It uses abrasive discs or masonry blades and generates large amounts of dust, so it includes a dust extraction system. Personal protective equipment is necessary, and it’s important to check for other pipes and wiring before use.
A wall chaser is an electrical tool used to chase or cut channels in masonry walls to accommodate electrical cables or pipes. This tool is typically a hand-held unit similar in design to an angle grinder that makes cuts using abrasive discs or masonry blades. Most wall chasers contain drive heads that allow one or two discs or blades to be mounted at the same time. The double blades allow you to cut a channel of suitable width in a single pass. Because cutting masonry generates large amounts of dust, a wall blower typically includes a fitting for the dust extraction system.
Electrical wiring and piping are usually installed after the walls of buildings are erected. Routing wiring or tubing requires that a groove or groove be cut into the wall surface to accommodate them. Before the time of power tools, chasing was cut with a chisel and hammer. While this method is still used and is useful in tight spaces or for short chases, it is a laborious and time-consuming process. Wall upsetting machines make short, if not noisy and dusty jobs of long cable and pipe runs in the toughest masonry.
Modern wall-hunting hand tools are similar in design to an angle grinder, except that the blades are oriented vertically. Abrasive discs such as those used on an angle grinder or special masonry blades are used to make the cut. The driving heads of the groovers generally foresee the assembly of one or two blades or discs at a time. The double bladed configuration is typically used where full width cuts are required for fitting water pipes and electrical conduit. A fairly wide range of different wall chaser models are available with average power ratings between 1,200 watts and 2,000 watts, and with blade sizes between 6 and 9 inches (150-230mm).
Cutting masonry generates large quantities of fine dust. As a result, most wall chasers will be equipped with a dust bag or fitting to connect to a dust extraction system. These systems should always be used in conjunction with a dust mask or respirator because the dust generated can be very impressive.
The wall chaser is a powerful tool that drives a pair of extremely sharp blades; it is advisable that operators are fully familiar with the manufacturer’s operating instructions and safety measures before starting the machine. Personal protective equipment is also a must; always wear eye and hand protection. It’s also important to use a suitable scanner to check for other pipes and wiring in the wall before chasing.
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