Check the listing for details. Riteknife Auto-retractable Safety Knife, Retractable, Multipurpose, Aluminum. Condition: New. Listed at 23.00 USD. This ergonomic safety knife was developed in partnership with safety professionals to set the standard for automatic safety knives in the industry. With over 1 inch of blade extension, the AS100 can safely cut heavy-duty materials such as double or triple wall corrugated, heavy-duty rubber, and difficult-to-cut plastic bands. It also excels for slabbing paper, film or foil.Equipped with fast-acting Riteknife Blade Guard Technology™ to prevent lacerations, and a patented, easy tool-free blade change, you can feel confident that every feature has been designed to eliminate risk of lacerations and repetitive motion injuries.Cutting Depth 25 mm Weight 150 gms Dimensions 180 mm x 55 mm x 19.5mm Materials: Heavy duty aluminum Blade MaterialCarbon Steel