Bad Dog Biter turns your Hand Drill into a Nibbling Tool! With a Patented Steerable Head that makes cutting patterns easy and puts control at your fingertips Biter can cut up to 1/8 Aluminum 14 gauge Mild Steel 16 gauge Stainless Steel and 11 gauge Copper Brass Bronze. And its not just for Metal C cut up to 1/8 Leather Formica Paper Lexan Plastic and More. Dual Heads allow for double the cutting time for each blade. And its safe to use because while the cutting head is large enough to let in material your fingers wont fit. Patented Pass-Through Blade makes replacing the blade simple. Loosen one setscrew and push the new blade through and the old one out. Use with any hand drill even cordless. Kit includes aluminum Biter Body complete with two Steerable 2 Heads and HSS blade one spare HSS blade one spare Cutting Head one spare Set Screw Combo-wrench for quick head change. All packed in a durable foam-lined metal toolbox.