This Cutter represents the latest development in the line of SmartKnife™. The 0.63 mm thick blade is highly suitable for use with virtually any type of material. This ergonomically styled heavy-duty safety utility knife, made of aluminum, provides for perfectly controlled cutting operations – ideal for use by right- and left-handers, even when wearing protective work gloves. This Cutter features the time-tested SAFETY TECHNOLOGY (MST) in that the spring-loaded blade retracts instantly the moment blade edge contact is lost – even if and when the user holds on to the blade push. The safety system cannot be manipulated! “GS-TESTED FOR SAFETY”. Easy blade change: no extra tools required.