The PS15 Truckstar Plus is a more sophisticated regrooving unit with a large cutting head, and a comfortable, ergonomically designed handle. The digital heat control keys, which have now been integrated into the new electronic board, make the unit more reliable and allows the heat output to be regulated at close to 1%. The 500 watt transformer of the PS15 Truckstar Plus makes regrooving easier by saving the operator time and energy as the blade slips easily through the rubber. A safety feature prevents the block assembly and blade from heating up until contact is made when regrooving begins.