This practical tap wrench tool set is a general tool for hand tapping operation. Adopting alloy steel, which is and has . With this set, the internal thread processing will become more easily and precisely, fit for for Model processing, Handmade, DIY use. Feature - Color: as shown. - Material: alloy steel. - Size: 15.2x10.8x3cm/5.98x4.25x1.18inch - Included: 1pc - tap holder, 7pcs screw taps (M3x0.5, M4x0.7, M5x0.8, M6x1, M8x1.25, M10x1.5, M12x1.75) 7pcs drill bits (2.5, 3.3, 4.2, 5, 6.8, 8.5, 10.2) - Made by alloy steel material, which is and has longer service life. - Can improve the efficiency of processing thread effectively. - for manual processing, also can be used for electric tools. - Suitable for model processing, Handmade, DIY use. Package list: 1 holder 7 x screw taps 7 x drill bit