Features: _x005f_x000D_ Twist drill bits are made from high speed steel for high hardness and durability. _x005f_x000D_ The surface of drill bit is coated with titanium that gives it a beautiful color._x005f_x000D_ _x005f_x000D_ There are 19 pieces drill bit in different sizes of the most popular drill bits. _x005f_x000D_ They are great for most drilling jobs and materials such as aluminum, wood, plastics. _x005f_x000D_ Sharp twisted drill bits will make the drilling easier and more effortless. _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ Specifications: _x005f_x000D_ Material: High speed steel _x005f_x000D_ Surface Finishing: Titanium plating _x005f_x000D_ Type: Twist drill bit _x005f_x000D_ Diameter of Head (mm) Diameter of Shank (mm) Length of Blade (mm) Total Length (mm) Quantity _x005f_x000D_ 1 1 10 35 1 _x005f_x000D_ 1.5 1.5 15 45 1 _x005f_x000D_ 2 2 20 45 1 _x005f_x000D_ 2.5 2.5 30 55 1 _x005f_x000D_ 3 3 30 55 1 _x005f_x000D_ 3.5 3.5 40 70 1 _x005f_x000D_ 4 4 40 70 1 _x005f_x000D_ 4.5 4.5 50 80 1 _x005f_x000D_ 5 5 50 85 1 _x005f_x000D_ 5.5 5.5 55 90 1 _x005f_x000D_ 6 6 55 90 1 _x005f_x000D_ 6.5 6.5 60 100 1 _x005f_x000D_ 7 7 60 100 1 _x005f_x000D_ 7.5 7.5 70 110 1 _x005f_x000D_ 8 8 75 115 1 _x005f_x000D_ 8.5 8.5 75 115 1 _x005f_x000D_ 9 9 80 125 1 _x005f_x000D_ 9.5 9.5 80 125 1 _x005f_x000D_ 10 10 80 130 1 _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ Package Includes: _x005f_x000D_ 19pcs x Drill Bits