Safecutters Nummo utility knife
Safecutters NUMMO knife combines the features of a durable auto-retract box cutter on one end and a rotary cutting blade with tape splitter on the other.
On the Auto-Retract side the blade automatically retracts the instant it loses contact with the cutting surface. On the Rotary Cutting side the concealed rotary blades works great for cutting shrink wrap, plastic bands and thin cardboard and even includes a tape splitter! Made out of a nearly indestructible metal housing and anti-slip cushion grip the Nummo truly is an all-in-one knife.