Fantastic quality, strong and well made. I normally only to well known professional brands and in the past tried a few other cheaper which for me are not ideal. These are great and i used them both to strip of paint on facings and skirtings before sanding them as i have to say, WOW. Performance is professional grade but with the cost a lot cheaper, do not block up any faster than my usual two brands, clean just as easily with a wire steel brush. You do need a Starlock adaptor for certain brands that have the quick fit design with a gap at the rear of the blade's.
From now on i will be using this brand as i get nearly double for the usual money i pay for my original brands. I am a carpenter/Spacial designer/Shop+Restaurant fitter and i use these a lot.
Definitely recommend them to anyone.