A professional ergonomic rotary cutter equipped with a durable SKH-9 steel blade that effortlessly slices through heavy fabrics, leather, felt, and paper. An integrated safety-lock button retracts the blade when not in use to prevent accidental cuts. Designed for maximum comfort, the non-slip handle is fully ambidextrous for both left- and right-handed users. The adjustable nut mechanism allows precise blade tension control—looser for smooth cuts on light textiles or tighter for heavy materials like leather and carpet. Featuring an upgraded round-hole blade mount, it ensures fast, hassle-free blade replacements and full compatibility with future spare blades.