The T-Tool comes with T-6, T-8, and T-10 Torx bitsand those will take care of most Kershaw knives. The bits store in the aluminum shaft of the tool and the head is magnetized to make it easier to change bits. To make it super-easy to always have the tools you need, the T-Tool comes with a removeable key chain ring. Carry it with you and if you need to make an adjustment, you're always prepared.