WORKPRO Titanium Drill Bit Set, 29-Piece 1/16-inch to 1/2-inch Twist Drill Bits Kit with Durable Metal Case PILOT POINT STARTS- Precision start features 118 split point on the tips to reduce bit walking and lead to low point blade movement MULTI PURPOSE USE- with titanium coating are the drills durable, shanks fit standard three-jaw drills, and multi-purpose use in drilling wood, plastic, light-gauge metal and etc. 29 PIECES TWIST DRILL BITS- This drill bit set contents: 1/16, 3/32, 1/8, 5/32, 5/64, 7/64, 9/64, 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 Inch COMPACT STORAGE METAL CASE- Strong metal case for organizing drill bits orderly, makes the bits kit portable and hangable QUALITY ASSURANCE- All drill bits meet and exceed all ANSI specifications for added safety. If you have any explain or question of this product, please feel free to contact us Affordable Dependability, Reinvented. Our sole focus is to build high quality tools at an incredible value. We are in business to bring affordable dependability to the world of tools. Heavy duty designed by high speed steel for durability Precision start, no walking and low point blade movement Titanium-coated bits for longer life. dependable ,suitable for a wide range of projects Tinplate iron box for protection and well organization