Funny you asked me about trimming covering, I asked my buddy if I lent it to him, he said maybe, but thinks he gave it back, so either he has it, he had it and lost it or my ex threw it out in the move, which I doubt, since every screw on my bench was ina nice sturdy box that I still have to this day to sort out. So anyhow, I stopped at al's hobbies and picked up another one, makes life soo much easier ya know. All these tools really add up, but the next kit you build, tou'll have them so the cost of the next one will only include new #11 blades for the hobby knife and single edged razor blades. Before you know it, you'll enjoy building more and more as your skills improve and it get's easier to do, by then you'll find yourself going to the local Home Cheapo to get some simple bulbs for a few that burned out in the house and coming home with that and a scroll saw or a bandsaw, you get the picture. I did that last weekend, went out friday after work, picked up her shelving for the office, and had to force myself to not go and pickup a scroll saw, instead I got some pegboard and some 2x3's to put up next to my bench on the wall so I can start organizing the bagged goodies I've accumulated over the decade and a half being in this hobby. I seemed to realize that I should by stock in the manufacture that makes the stupid little hooks, I need about another 15 4pk bags and another wall?!