Only problem with some Aldi gear is consumables, I have their Mig welder which is sort of OK but only has a hi/low setting and if the gun buggers up I may as well throw it away as it is all part of the main unit, no connection, no burn back control and polarity is fixed.
It is very much a hit and miss unit and you can’t fine tune to get a good result, the feed speed is the only controllable feature.
Still waiting for the Unimig to arrive and the sparky to arrive to fit the 15a socket in the shed.
You really shouldn’t use your welding gun as a hammer.
You sound like a Sparky I know, tool kit consists of a pair of bull nosed pliers and a screwdriver, reckons he can do any installation with that kit, chase out brickwork included. He also had a voltmeter screwdriver, it was marked in volts along the shaft, and he said that you read the voltage by how much of the screwdriver disappeared when you shorted something out with it.