ZETA and DRC products are distributed over 50 countries now. They ride dirt bikes. They develop products for dirt bikes. They test, manufacture and supply high quality products for dirt bike riders. Main shaft is CNC precision machined from 7075A aluminum and designed for optimum grip. Tips are made of heat treated steel for strength. Interchangeable tips to fit eight (8) sizes of spoke nipples \ Mini (4.0 / 4.4 / 5.0 / 5.2 / 5.6 / 5.8 / 6.0 / 6.2).