Crafts mechanical thumb yɛ ɔkwan a ɛyɛ mmerɛw na ne bo nyɛ den a ɛbɛboa wo mfiri no ma woanya grab adwuma no. Ɛyɛ nea wɔahyɛ da ayɛ na wontumi nsɛe no. Ɛwom sɛ ntokuru 3 wɔ weld no so wɔ mount so de siesie nsateaa nipadua no anim de, nanso mfiri no nsateaa no nyɛ nea ɛyɛ mmerɛw te sɛ hydraulic thumb a ɛwɔ grabbing so no. Weld on mounting type yɛ nea wɔpaw no kɛse wɔ gua so, sɛ mpo pin titiriw no wɔ hɔ a, wɔntaa npaw saa type yi esiane ɔhaw no nti bere a wɔde thumb body no hyɛ anaasɛ wɔde dum no.