A toolbelt is a belt with pouches that keeps tools at your hip. Wear a toolbelt, a loaded toolbelt, hang it on the toolbelt.
A full one is genuinely heavy and wrecks the back over a career, which is why braces are worn with it. The figurative use, adding something to your toolbelt, means acquiring a new skill.
1nountoolbeltA belt with pouches that keeps tools at your hip.
“The electrician reached into his toolbelt for a screwdriver without looking down.”
toolbelt is a belt.
Tool plus belt, from Old English tol, an implement, and belt, which came from Latin balteus.
From tool + belt.
Etymology from Wiktionary, CC BY-SA
Practised in Tools & DIY