Overview & First Impressions
Slip joints are having a moment, and the QSP Jumping shows why. Two and three quarter inches of 14C28N, a desert ironwood handle, copper washers instead of bearings, and a half stop that clicks like a door latch. It is designed by Spencer Marquardt and named for a traditional jack pattern, and at around 90 grams it carries like a pocket watch rather than a tactical folder.
Materials & Construction
14C28N at 59 to 61 HRC, satin finished and flat ground, which is exactly the right steel for a knife people will sharpen on a stone at the kitchen table. Desert ironwood is dense, oily and stable, and every set is figured differently so no two knives match. Copper washers give the action a deliberate, old-fashioned feel instead of the free-swinging smoothness of bearings, and the bolsters are pinned rather than screwed.
Design & Details
The blade is a slim clip point with a long pull nick, proportioned for detail work rather than heavy cutting. Open length is 6.25 inches, closed 3.50, blade 2.75 at roughly 3mm thick. The handle has a gentle curve and a single bolster, and there is no clip — this is a knife that lives loose in a pocket, which is the traditional way and still the most comfortable for a lot of people.
Real-World Use
Whittling, opening mail, cutting fruit, trimming string, cleaning a fish, slicing cheese on a camping trip: the Jumping is a knife for hands and food rather than tape and zip ties. The slip joint means it folds under heavy pressure rather than locking, so it is not a tactical tool and should never be used to pry. Used within that brief, it is one of the most pleasant knives to carry in this entire batch.
Ownership Notes
Ironwood needs occasional feeding. Wipe it dry, avoid soaking, and rub in a thin coat of mineral or linseed oil once or twice a year to stop it checking in dry winter air. The blade wants a drop of oil at the pivot and a strop every couple of weeks. Copper washers can darken; that is normal and part of the look. A leather slip with a lanyard bead keeps it from rattling against keys. QSP knives have earned a following for exactly this kind of traditional build, and among folding knives with a half stop it is a better value than most; for EDC knives that live loose in a pocket, few carry as comfortably.
Who Is This For?
This is for the person who carries a pocket knife as a tool and a small pleasure rather than a statement. It suits traditional pattern collectors, woodworkers, gardeners and anyone who has to work in an office where a locking folder would raise eyebrows. Skip it if you want one handed opening, a pocket clip, or a lock you can trust under load.
Final Verdict
The Jumping is the most charming knife in this batch and the one that will get carried the most by people who claim they do not collect knives. Good steel, real ironwood, honest copper washers and a half stop with a satisfying click. QSP has quietly become one of the best value traditional makers around, and EdcMall stocks all four handle variants.
