BRAND NEW - 115 Piece Titanium Nitride DRILL BIT SET! Ideal for hobbyists, home use, and around your shop! Titanium Bits are great for drilling wood, all types of steel, aluminum, plastic, etc. Professional quality at a Wholesale Price! Durable Metal Case - organize and protect this huge collection of bits. Titanium Nitride Coating - makes effortless work of all your drilling needs. Conversion Chart - shows the decimal equivalent for each of the numbered bits. BIT DETAILS - 29 standard bits from 1/16" to 1/2" in increments of 1/64th's 60 numbered bits from #1 thru #60 26 lettered bits from A-Z All Bits coated with TITANIUM NITRIDE. BRAND NEW!