This Yorkcraft™ 300pc Titanium Drill Bit Set keeps its sharp edge while drilling thru almost any material, thanks to the titanium coating that keeps them from getting dull. Coated heat treated stainless steel set includes 5/64"-3/6" twist drills, 5/32"-3/8" brad point drills, 5/32"-3/8" masonry drills and assorted wall plugs. $5.79