Russian ⇄ English

коловерть n stresses
gen.	maelstrom; whirlpool
fig., obs.	vortex
Gruzovik, dial.	breast drill (= коловорот); bitstock (= коловорот); brace and bit (= коловорот)
Gruzovik, tools	brace and bi (= коловорот)
tech.	brace (and bit)