Andy, I'm sorry I didn't get right back with you so soon, I love the little razor knife at wally world but you have to use the heavy duty blades with them/ I always dull my knife at work so this was my solution…I usually look at this forum everyday of passable before I goto work and if I post something, by time the next day rolls around the post ends up on the second page because you guys post so much and I usually don't get to far reading on the different sites I look at everyday.