The Geekvape 521 Master Kit V2 is one of the most comprehensive DIY kits for RTA/RDA, featuring the quintessential elite-level 521 Tab Mini Ohm Meter, slotted screwdriver, cross screwdriver, elbow pliers, diagonal pliers, scissors, and ceramic-tip tweezer. Inspired by the Coil Master DIY Full Kit V2, the Geek Vape 521 Master Kit includes a full suite of tools necessary for all building enthusiasts, whether for everyday usage or experimentation. The Geek Vape 521 Tab Mini features an elite level ohm meter with precise accuracy, test fire station, OLED Screen and spacious build deck. It is equipped with high grade Brass-Plated 510 elastic poles, the Geek Vape 521 Tab offers supreme durability and contact, offering readings down to 0.01ohms with precise ratings for accurate readouts. The 521 Tab Mini utilizes a single 18650 battery with three-way selector that allows users to switch from off, to ohm reader position, and firing setting capable of firing atomizers down to 0.1ohm. A convenient package allows optimal coil maintenance and general vape care, with all types of gadgets for handling all rebuildable adjustments, flush cutters, wire cuts, wicking management, and a huge array of capabilities. An essential compact case for all building enthusiasts, the Geek Vape 521 Master Kit V2 is a tool kit that has it all.