Rota-Tip Replaceable Cutters - 49.5mm long. High quality solid carbide replacement cutters for Trend RT/12, RT/12M, RT/13, RT/14, RT/70, RT/72, straight trimmer cutters. Blades can be rotated 180 degrees giving two cutting edges for longer lifespan Specification Length=49.5 mm Width=9.0 mm Thickness=1.5 mm Holes=2 Hole diameter=4 mm Hole centres=26 mm End clearance=yes