Teeth Carbide tipped teeth are supplied with each VH Mulcher. 250 hours of use appears to be the average tooth life for most conditions but this will vary with the abrasive nature of different soils. Outside teeth must be kept in good shape to prevent any glazing of the soils from occurring. These new teeth if pointed slightly are adequate for extremely rocky conditions and may wear better in these conditions. New carbide teeth perform better in dense soils where rate of penetration is important.
Blocks Blocks are the holders for the teeth.
500 hours of use appears to be average. Spacing and angle of approach are kept similar. The outside teeth must be angled outwards as to cut a hole larger in diameter than the head.