This tools set is specially used for DIY electronic cigarette. It includes many of essential tools， such as the resistance/voltage tester， coil jig stick， 3pcs coilers， 6pcs winding sticks.Features:Resistance Tester:Powered by 2pcs 1.5V AA batteries， convenient and easy to use.The resistance/voltage tester is mini in design， and simple for use.Test the resistance of atomizer and the voltage， accurate to 0.01 ohm.Resistance range: 0~20(ohm)， voltage range: 0~12V.3 in 1 nut joint， can test the resistance of EGO， 510， 808D， M7， M8.Suitable for people who like DIY E-cigarette.Tools:Specially used for DIY electronic cigarette， includes many of tools.With 6pcs winding sticks(1.5/2.0/2.5/3.0/3.5/4.0)， can wind 6 different sizes coil.Micro coiling technology， making coiling now is easy and convenient.Simply trap your wire， rotate the top cap， and you get that perfect micro coil in seconds.Light weight and portable， great for traveling use.Specifications:Resistance Tester:Color: Black Material: PlasticResistance Range: 0~20(ohm)Voltage Range: 0~12VAccuracy: 0.01V / 0.01 ohmPower Supply: 2 * 1.5V AA Batteries(NOT Included)Item Size: 68 * 47 * 19mm / 2.67 * 1.85 * 0.75in (L * W * H)Item Weight: 41g / 1.44ozTools:Coil Jig Stick Size: 65 * 12mm / 2.56 * 0.47in (L * Dia.)Coil Jig Stick Weight: 26g / 0.94ozCoil Jig Cap Size(1pc): 25 * 12mm / 0.98 * 0.47in (L * Dia.)Winding Sticks: 1.5/2.0/2.5/3.0/3.5/4.0Total Weight:193g / 6.81ozBox Size: 19 * 10 * 3.5cm / 7.48 * 3.94 * 1.4in (L * W * H)Package List:1 * Resistance Tester1 * Coil Jig Stick3 * Coil Jig Cap6 * Metal Winding Sticks(1.5/2.0/2.5/3.0/3.5/4.0)1 * Scissors1 * Screwdriver1 * Hex Tool1 * Storage Box