This sander is appalling badly designed and made. The build quality is poor and the sanding pad is connected by little plastic connections which broke just before the sander finally went bang. The detachable front pad didn't last for more than an hour before broken and then completely useless. I wished I used it more when I first had it, rather than waiting a year, as then I could have sent it back. I've now got a Bosch sander and it is much better, and for a better price Bosch PSM 160 A Multi-Sander
I'm sure other Black & Decker products can't be this bad but I am not prepared to take the chance with them after wasting my money on this product.