Rounded tip edge helps reduce utility knife accidents in the work

Safety knife replacement blade features rounded corners to help reduce injuries in the workplace. Blades manufactured using OLFA multi-step production process for superior sharpness and blade retention. For Retractable Safety Knife (SK-4), Flex-Guard® Safety Knife (SK-6), and Retractable Auto-Lock Utility Knife (UTC-1). Each blade features 2 cutting edges. 10 blades per pack.