"Used this to rake out a whole house. Very easy to use. Nice and light. Used for several hours at a time. only problem is the on switch that can be a bit fiddly. Throw the blade away as useless. As there is a gap between the blades it leaves that line of mortar in.meaning you have to go over it again. Blade lasted 3 hours. I replaced it with a spectrum trade mortar rake blade 6mm £22.00 lasted for 2.5 days a lot better and it does all the joint first time. I use a matabo dust extracter with it and it fills the bags quickly. The tool catches about 85% of the dust no matter which blade I used. You must use it upside down then doing horizontal joints"