DEWALT Black Gold HSS Drill Bits have a speed tip and a tough core for increased durability. The bits also incorporate a no spin shank that eliminates the frustration of the bit spinning in the chuck. Supplied in a TOUGH CASE+, this is part of a connectable case system that is TSTAK™ compatible. Individual TOUGH CASES can be clipped together for easy transportation. Black Gold Drills for Metal and Multimaterial Drilling - Drills into wood, metal and plastic. No spin shank which eliminates bit slippage, provides positive lock on chuck, and ensures clean and accurate holes. Tough Core: twice as strong core for increased durability and reduced shank breakage. Optimised helix angle for reduced pull through and a 70% reduction in breakthrough torque. Features Speed Tip: .
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