Cabinet table saws are heavy saw, usually made of cast iron to minimize vibration and increase accuracy. A cabinet saw is characterized by having a closed (cabinet) base. Cabinet saws usually have induction motors in the 3 to 5HP range. The motor is enclosed within the cabinet and drives the blade with three parallel v-belts. Cabinet saws are heavier and offer the following advantages over contractor saws: heavier construction for lower vibration and increased durability; a cabinet-mounted trunnion (the mechanism that incorporates the saw blade mount and allows for height and tilt adjustment); improved dust collection due to the totally enclosed cabinet and common incorporation of a dust collection port. In general, cabinet-mounted trunnions are easier to adjust than table-mounted trunnions.