DEWALT 12" Self-Feed Bit Extension

This 12 In. heavy-duty self-feed bit extension from DeWalt features an aggressive spur that provides fast material penetration, an optimized cutting geometry for longer bit life, an open tooth design for more resharpening, and a 7/16 In. ball groove shank for quick change applications.   Aggressive spur provides fast material penetraion Optimized cutting geometry provides longer bit life Open tooth design allows for more resharpenings 7/16" Ball groove shank for quick change applications