The DirtSaw Deuce 2 UL from TheTentLab is a 17 g aluminium cathole trowel built around a curved U-profile blade — a shape chosen to spring back when the tip meets a root or a buried rock rather than folding the way a flat blade can. The flat handle keeps the whole tool low-profile for storage in a pack pocket.
Its defining feature is the DirtSaw™ tooth pattern along the blade edges, which the maker positions as cutting through clay and roots rather than just pushing past them, reportedly cutting digging effort by roughly a third compared with a plain-edged trowel. At 17.3 x 6.4 cm the blade is compact rather than a wide scoop, so it favors precision over volume per stroke.
There is no built-in depth marker, so gauging a proper cathole depth is left to the user's judgement. For weekend backpackers and thru-hikers alike, a sub-20 g trowel like this is close to the practical floor for a dedicated digging tool, trading raw digging speed in loose soil for near-negligible pack weight.