Strong's Definition
a bezel (for a gem)
KJV Usage: pipe
STEPBible — Tyndale Abridged Hebrew Lexicon
נֶ֫קֶב (ne.qev) — socket. 1) groove, socket, hole, cavity, settings 1a) technical term relating to jeweller's work
UBS Dictionary of Biblical Hebrew
noun m · נקב · אֲדָמִי הַנֶּקֶב
1 EZK 28:13 RSV NRSV ESV "engravings" | NIV "mountings" | NJB REB "spangles" | NJPS "mined"
UBS Dictionary of Biblical Hebrew © United Bible Societies, licensed CC BY-SA 4.0.
Brown-Driver-Briggs Hebrew Lexicon
[נֶ֫קֶב] n.[m.] term. techn. of jeweler’s work, prob. some hole or cavity,—only pl.sf. Ez 28:13 ref