Professional contractors rely on DewaltSelf-Feed Wood-Drilling when they need to bore extra-large diameter holes for pipes, cables, and ductwork. These ultra-heavy-duty bits feature a double-cutter design that reduces binding and stalling, and a self-feeding screw-tip point that helps pull the bit through the material. And because there are flat surfaces machined into the shank, there?s less chance of the bit slipping in the chuck. Available in sizes ranging from 1 to 4 5/8 in. dia.

4-5/8 Self-Feed Bit "

4-5/8" Heavy Duty Wood Drilling Self-Feed Bit The DeWalt 4-5/8" heavy duty wood drilling self-feed bit is an extremely durable and useful attachment. Use this to increase your drilling efficiency and decrease your work time. Superior build quality means you will be using this bit for years with minimal wear and tear. A must have for any professional or do-it-yourselfer. Features: Aggressive spur provides fast material penetration Optimized cutting geometry provides longer bit life Open tooth design allows for more resharpenings 7/16" Ball groove shank for quick change applications DEWALT is firmly committed to being the best in the business, and this commitment to being number one extends to everything they do, from product design and engineering to manufacturing and service.