... router machine for Wood, aluminum board, plastic, density board, wave board, PVC, acrylic, crystal, light marble Features1..Excellent Parts ... spindle ,high precision bearing which has low noise and long life.2..Resonable Designs:advanced rack and pinion drive ... . Applicable materials: Wood, aluminum board, plastic, density board, wave board, PVC, acrylic, crystal, light marble and other nonmetal ...