Innovative tip reduces walking for improved accuracy. Optimum grade of carbide provides maximum durability. Unique flute design efficiently removes dust reducing bit binding. Improved carbide tip provides up to 2X longer life. DeWalt Premium Carbide Percussion Hammer bits are used primarily for drilling small diameter holes in masonry, concrete, rock, and artificial stone. These bits are used primarily to drill holes for mechanical anchors and fit into standard 3/8-inch and 1/2-inch chucks. 5 Assorted Twist Drill Bits. This a new set of 5 assorted twist drill bits. Great for drilling all kinds of wood and metal. They can be used with a Dremel tool. Each measures approximately 1/8" in diameter.

1/2" Rawl Sds Carbide Bit. hammer drill bits deliver fast impact drilling in concrete, stone and masonry. Low voltage, high temperature brazing prevents the carbide cutting edge from breaking out even when heat builds up during deep drilling. Innovative tip reduces walking for improved accuracy ,Optimum grade of carbide provides maximum durability .Unique flute design efficiently removes dust reducing bit binding ,Improved carbide tip provides up to 2X longer life .DeWalt Premium Carbide Percussion Hammer bits are used primarily for drilling small diameter holes in masonry, concrete, rock, and artificial stone. These bits are used primarily to drill holes for mechanical anchors and fit into standard 3/8-inch and 1/2-inch chucks.