Handheld Mini Pneumatic Chamfering Machine 45 degree Edge Trimming and Deburring R-Corner Chamfering ArcVersatile: This pneumatic chamfering machine can chamfer R C angles, round holes, irregular edges, arcs, and straight edges on a variety of materials including steel, aluminum, copper, acrylic, and wood. Difference Between C and R Angle: C Angle blade is angular, mostly used for metal chamfering and R angle blade is rounded and chamfered for woodworking. Easy Operation: This 45 degree Pneumatic mini chamfering machine air tools has a new lightweight