Exclusive OLFA ExcelBlade blades are manufactured with new, unique technology. Intentionally raised hardness provides a super initial cutting performance. Since the sharpened angle is much sharper and the sharpened face is longer than the standard OLFA blade, the cutting power of ExcelBlack blade is approximately 25% stronger than standard OLFA blade. The OLFA standard blades are the best blades for multi-purpose use. Especially, because of the multi-phased sharpening OLFA standard blades have an excellent long lasting feature. The OLFA ExcelBlack blades are requested by professional people and special workshops where people require a clean finish after cutting work. The black coated surface emphasizes the sharp edge. The OLFA ExcelBlack blade is the new generation of snap-off blade.