Knife Industrial Automatic Retractable 150mm The QRKA150 is a 150mm industrial utility knife designed for safety and durability. Its die-cast zinc body ensures a sturdy build, while the spring-loaded mechanism allows the blade to retract automatically when not in use, reducing the risk of accidental cuts. The ergonomic design features a secure rubber grip, providing comfort during extended use. This knife is suitable for heavy-duty tasks and includes a heavy-duty blade, making it ideal for professionals requiring a reliable cutting tool.