MapleStory 2 included with its own set bonus
From weakest to strongest, the Tinkerer's set colors are Yellow -> Green -> Blue -> Red -> Black. Each colored set is included with its own set bonus.
Tinkerer's Black Belt: Req. Lv: 100, STR/DEX/INT/LUK: +100, Weapon ATT/Magic ATT: +50, Weapon DEF/Magic DEF: + 100, 1 upgrade slot (unhammered)
Tinkerer's Black Shoulder Accessory: Req. Lv: 100, STR/DEX/INT/LUK: +40, Weapon ATT/Magic ATT: +15, Weapon DEF/Magic to Buy MapleStory 2 Mesos DEF: +200, 1 upgrade slot (unhammered)
Set Bonus (Black): STR/DEX/INT/LUK: +50, Maplestory MaxHP/Maplestory MaxMP: +20%, Weapon ATT/Magic ATT: +50, Weapon in MapleStory 2 Mesos DEF/Magic DEF: +200
You could also get the Yellow, Green, Blue, and Red equips too.