Metal, Wood, Drywall, And Plastics Drilling With Hss Titanium Steel Bits DRILLING AIN?T EASY: Drilling quickly and accurately into different materials requires choosing the appropriate drill bit type. Get it done right with The Hi-Spec Multi Metric Drill Bit Set. The perfect complement for those everyday drilling jobs in wood, plastics, metal, drywall, masonry, concrete and brick 78 HSS BITS: High-Speed Steel (HSS4241) round-shank twist drill bits, stronger than normal high-carbon steel, for most metals, wood, drywall and plastics. Titanium coated for wear resistance and reduced friction. Sizes 1/16, 5/64, 1/8, 5/32, 3/16, 1/4, 5/16, 3/8? 26 BRAD POINT WOOD BITS: Their sharpened edges easily cut and churn out wood, drywall and plastics. Also known as spur point bits, piercing tips allows for non-slipping and accurate starts. Sizes 5/32, 3/16, 15/64, 5/16, 3/8" 26 MASONRY BITS: Super hard Tungsten-Carbide YG8C tips ensure longer-lasting strength against brick and concrete by breaking up stone and masonry particles in combined hammering and drilling action. Sizes 5/32, 3/16, 15/64, 5/16, 3/8? KEEP IT TOGETHER: Bits come wrapped in bags, not loose. A slim storage tray case keeps bits in separate compartments with a clear plastic insert to prevent movement. Sizes are printed on the case lid underside and its steel catch snaps shut to makes sure it doesn?t unexpectedly pop open