- The SISIS Veemo MK2 is a purpose designed, triple mounted hydraulic driven scarifier using strong cutting blades for maximum thatch removal and minimum surface disturbance. The three independently floating heads follow ground contours closely without scalping. Depth of cut is infinitely variable by means of a locking micro–adjuster on each unit. A choice of 1mm or 2mm tungsten tipped blades are available to carry out scarification and verticutting requirements