After using the Slice Model 10503 box cutter in the retail/warehouse returns department, the handle and everything else stayed intact for nearly a year, delivering powerful cuts in boxes of varying thicknesses, right down to the toughest tape. Blades last approximately two months (two blades per blade; thousands of boxes and cut ribbons). I use 10408 refills in addition to the supply that comes with it. The handle offers excellent torque and stability. Worth the extra money as the tips don't break. Negative: Rubber grips sag a little (again in use for about a year.) No buying company for my own job, but promised other colleagues about this cutter, and now also abroad!