trenterpukk, tagumine tsenterpukk
treipingi osa, kuhu on kinnitatud tagatsenter toorikute toetamiseks töötlemisel (vrd esipukk), a component mounted to slide on a lathe bed; it carries a spindle in true alignment with the centre of the headstock, a longitudinally adjustable, and is coned internally to receive a centre (compare: headstock)
