FoamWerks Foamboard V-Groove Cutter cuts a 45 degree angle for crisp clean joints. Perfect for creating boxes where you need 90 degree corners. Cuts from 1/8" to 1/2" thickness. Built in blade storage. WC-2001. This item can be used with our Foamwerks 32" channel rail or any of our Big Blue or Sooper Edge safety rulers from 28" - 96".