1 45 mm (1 3/4″) skip‑cut rotary for perforations blade for most compatible cutters. Premium steel holds a sharp edge for clean cuts; replace dull blades to reduce fraying and hand fatigue. Store safely when not in use. Skip‑cut profile creates evenly spaced perforations for edging, lacing or crochet borders. Always use on a cutting mat and follow the cutter manufacturer’s instructions when changing blades.