Tormek KJ-45 self-centring knife jig KJ-45 centres the knife in the jig for optimal, symmetrical results. An extra stop for tall knives, such as cleavers. Works with Tormek T4/T8 and older models. This Knife Jig is a great tool for the sharpening professional. It is made from high-quality materials and designed for precision and accuracy. The durable construction makes it ideal for repeated use and the clamp provides secure support for sharpening.