This is the 17778th most frequent Russian word.
умелых
"Skilled" or "capable."
Here, 'умелых' is used as an adjective to describe 'мастеров' (masters/craftsmen), indicating they possess skills.
Умелых мастеров ценят во всем мире.
Skillful craftsmen are valued throughout the world.
In this sentence, 'умелых' describes 'профессионалов' (professionals), emphasizing their expertise and competence.
В его команде всегда только умелых профессионалов.
His team always includes only skillful professionals.
Here, 'умелых' serves to qualify 'рук' (hands), metaphorically suggesting that the hands, under skillful guidance, produce remarkable results.