101Leafy researched the games.
Kut-Ku Pick

A new version of the famed Kut-Ku Hammer. Made to order and incredibly hard to find.
| Class | Hammer |
|---|---|
| Rarity | 4 |
| Attack | 884 |
| Affinity | 10% |
| Slots | 3 |
| Price | 5,600z |
Upgrades
| Upgraded from | Kut-Ku Jaw |
|---|---|
| Upgrades into | Hard Bone Hammer, Feather Whistle |
Upgrade tree from モンスターハンターポータブル 2nd G 公式ガイドブック (Enterbrain, 2008), page 722.
Materials
Plus Class Tcket ×1, Rainbow Ore ×1, Monster Bone+ ×1