The first Leatherman folding knives were introduced in late 2005. Altogether there have been five model series with large lock-back knives. All are now retired.
The two large Crater knives were introduced in 2008, and retired in 2011. They have a carabiner, 420HC blades, glass-filled nylon bodies, and two-digit size numbers.
Four large Expanse knives was introduced in 2008, and retired in 2011. All have a carabiner, liner lock and blade launcher, with 154CM stainless steel blades, combination metal and nylon bodies, and two-digit size numbers.
The "H" series of four Leatherman knives was introduced in late 2006, and retired in 2008. All are large lock-backs with 420HC stainless steel blades. Even numbers are plain blades, and odd numbers are partly serrated. H502/503 add a bottle/can opener and bit driver, with two bits stored in the body.
The "K" series of four Leatherman knives was introduced in late 2005, and retired in 2008. All are lock-backs with 154CM stainless steel blades. Even numbers are plain blades, and odd numbers are partly serrated. K502/503 add a carabiner, bottle/can opener and bit driver, with two bits stored in the body.
Five innovative lock-back hunting knives were introduced in 2007, and retired in 2009. They are larger than the other models, with names inspired by the geography of Oregon and Idaho.
