"Bought this to run a network in our house. Cuts reasonably neat holes which cover with the plastic plugs and you cant feel them under the carpet. Been used for several other jobs since as it is sometimes handy to get access at a specific point under a floor. (Fitting spots etc)"
"Does the job it was designed for at a fraction of the price of the Armeg one. It even work very well in a cordless drill. You do however need to get an arbor to use it, either the SDS one  or the hex version . Just a shame it isn't available in the 127mm version, as the covers are cheaper. Good value for the DIYer but if you were doing loads go for the larger Armeg version as it will probably save in the long run on covers."