Tooluxe 30 Piece Quick Change Titanium Drill Bit Set. Includes 1/4" Hex shank for fast changes. Roller forged and sharpened edges. Bits are made from high quality high speed steel combined with a titanium coating to maximize the tool life without compromise to the quality after multiple uses. Ideal for use with power drills and drivers to stationary drill presses. Sharpened drill bit edges allows faster penetration and is versatile for a wide range of applications ranging from repair work, automotive, and even construction use. Set comes neatly organized in a heavy duty blow molded case. Each slot is labeled with the corresponding bit sizes so you never have to worry about clutter. Case makes it great. Each bit is equipped with a 1/4" hex shank that easily fits tightly into any power drill or driver. Our set also includes a hex shank adapter to use on universal chucks. The 135 degree split point tip and twist design helps with cutting speed while providing easy self centering without walking. Bits are individually labeled for easy identification of sizes. Quickly find and locate the right size drill bit that is needed without confusion. DRILL BIT SET SIZES: 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 11/64", 3/16", 13/64", 7/32", 15/64", 1/4", 17/64", 9/32", 19/64", 5/16", 21/64", 11/32", 23/64", 3/8", 25/64", 13/32", 27/64", 7/16", 29/64", 15/32", 31/64", 1/2" + 1 quick change adapter.