Range of processing ---- for carving/cutting/engraving/milling in materials like Corrugated stock, cardboard, double wall cardboard, foam board, rubber. High efficiency ---- these baldes own sharp edge which is able for fast engraving that makes high efficiency; durable, high precision and not easy to break; it is smokeless and burr-free while processing. Perfect cutting ---- the angle design,makes non-stick crumbs, smooth cutting and fast chip-removal. Max.cutting depth:6mm,total length/Overall Length (OAL): 24mm. Package contents ---- 4pcs zund blade cutting tools assorted in a storage case., Manufacturer: Keentools