The blades are set at opposing angles and have a round shape that is 1.0 mm in diameter set on a 14 mm terminal shank. Excellent for mesial and distal adaptation. Diamond-coated furcation files have a thin profile for easy sub-gingival access. The tips are made from a special spring tempered stainless steel that resists breakage. The blades have a fine diamond coating on the inside curvature that is used to remove calculus and a smooth, uncoated back to protect soft tissue. The cutting action of the diamond coating allows a multidirectional stroke pattern.