Grizzly 389001 3-Phase Metalworking Belt Sander, 4 hp Our newest sander is made specially for metalworkers and is designed to give you versatility and performance it uses 79-Inch long sanding belts that It uses 79-Inch long sanding belts that resist heating up even with a surface speed of 3937 fpm Change the angle of the sanding head to suit the job at hand