Is it the sports car of nibblers? Maybe...It"s light and compact and, where other cutting tools cut straight lines or curved lines, the Bad Dog Biter ™ can cut drag-race straight and make track-worthy turns with ease. Plus, there"s no cords or hoses to get in the way so you get a sleek cutting machine that really will cut circles around anything else out there. Using PATENTED technology and, powered by your hand drill and a pair of powerful cutting heads, the Bad Dog Biter ™ drill-mounted sheet material cutter makes it easy to cut sheet material up to 1/8" thick. Like one Bad Dog Biter ™ user said, "These puppies cut circles around other nibblers."We couldn"t have put it better!