The WEN 15-piece titanium-coated drill bit set a variety of tested bits for all of your drilling needs. The titanium coating the lifespan of your bits by fighting wear and breakage while the 135-degree split points limit slips and walking. Sizes from 1/16 of an inch all the way up to 1/4 of an inch in 1/64 inch intervals. The uniquely molded base a stalwart grip for drill chucks, preventing the bits from slipping or spinning during application. for making clear holes in metals, woods and plastics. a dense carrying case for favorable storage and transport.