... the design of files, without power wasting, keeping machine work with same power on each position of working ... result. Applicable Materials: Wood, Acrylic, Plywood, MDF, Leather, Glass, Plastic, PMMA, Perspex, Plexiglas, Plexiglass, ABS Double Color Board ... , Organic Glass, PVC, Paper, Paperboard, Cardboard, Bamboo, Balsa, Rubber Sheet, ...