Hennessy Industries Inc. says the ProGuard Plus Leverless tire changer is an advanced version of Coats' current ProGuard tire changer and features a pneumatic wheel clamping system. A dual-bead roller system makes the unit match-mount-capable and increases changing speed and capability while semi-automatic top roller indexing allows for faster bead dislodgement. An auxiliary bead depressor assist tool locks into the tower assembly to help keep the bead in the drop center.