The Reate T4000 is the big-blade end of the T series: a full 4-inch blade over a bead blasted titanium frame at just 5.3 ounces. Reate builds it for enthusiasts who want maximum cutting edge in a dress package, and the two builds in the grid split cleanly between working steel and showpiece.
The working build runs belt satin M390 on 0.157-inch stock, four inches of powder stainless that holds an edge through serious daily cutting and shrugs off corrosion. The dress build steps into acid wash Damasteel, and at this blade length the Swedish pattern-welded stainless has more canvas than anywhere else in the T series, which is exactly the point of it.
Both builds wear a marble carbon fiber inlay set into the bead blasted titanium frame, the swirled composite catching light differently from every angle against the uniform matte of the handle. Lockup is a titanium frame lock, carry is a right-hand tip-up pocket clip, and per DLT's own product write-ups the T4000 is aimed squarely at collectors and enthusiasts who appreciate fine materials without giving up a knife that actually works.
The fork at the top of the T series comes down to blade length. The Reate T3500 runs Tashi Bharucha's 3.5-inch design at 5.1 ounces with the family's dressiest inlay set, while the T4000 buys another half inch of edge for barely two-tenths of an ounce, an 8.86-inch overall knife that still carries like a mid-size. If the blade is the reason you're here, the T4000 is where the ladder tops out.