MT3/MT4/MT5 medium duty live center, carbide alloy, oiling type, morse shank

Insert groove of collet into eccentric ring of the

clamping nut at the mark on the bottom of the nut. Push collet in the direction of the arrow until it

clicks in place. Screw nut with collet onto tool

holder.

After the nut is unscrewed from the toolholder,

press on the face of the collet while simultaneously pushing sideways on the back of the collet opposite the mark until it disengages from the clamping nut.