Cordless Wall Chasers: for Cable and Pipe Chases

Twin-blade chasers cut both walls of the chase at once, and the core is then removed with a chisel, while single-blade models suit short chases and cuts. See how to choose a wall chaser.

Cordless models usually cut 8–45 mm deep, and the chase width is adjustable from 3 to 30 mm with spacers between the blades. The blades must match the wall material. See how to choose a diamond disc.

A wall chaser produces very fine dust, so choose a model with an enclosed guard and an extraction port and use an M-class vacuum. Read vacuum cleaner filters, dust containers and dust classes and how to choose a respirator.

18 V models are enough for plaster, aerated block and short chases, while 36–54 V systems are preferable for long chases in concrete. A capacity of 5–9 Ah determines how many metres of chase you get per charge. Read cordless tool voltage (V) and battery capacity (Ah).

Check compatibility with your existing battery platform and whether the kit includes blades, spacers, a chisel and a case or the tool is sold bare. See what is a unified battery platform.

A brushless motor holds speed in hard concrete, and anti-jam and overload protection prevent kickback and battery overheating. Read what is a brushless motor and what is overload protection.

Weight with the battery is usually 4–7 kg. Guide rollers, a clear depth scale and a second handle help keep the chase straight and reduce fatigue. See tool ergonomics, weight, and safety systems and what is vibration level.

Before chasing, check the wall for cables and pipes, work with both hands and wear glasses and ear protection. Read how to use cordless tools safely.