Cut confidently day after day. The heavy duty retractable knife combines a tough body with a textured grip so you can guide the blade through packaging, vinyl, insulation and plasterboard without slips. The slide locks at working depth to prevent creep, and the supported nose reduces flex on heavier cuts. Spare blades stow in the handle for quick changes—flip, fit and keep moving. For trades switching tasks frequently, the heavy duty retractable knife reduces fuss and keeps edges tidy across a wide range of materials.