Back up, no. Different knives for different tasks , yes. R.U.T. in front left. SAK in front right. Kershaw Skyline or Cryo in right rear. The R.U.T. has numerous tasks that I wouldn't use "YOUR" knife on. The SAK is for opening snuff cans, trimming and cleaning finger nails, light cutting and opening cans. The larger rear pocket knife if for larger tasks and for cutting my daily avocado at lunch time.