ER nuts are basic nuts with surface treatment for friction reduction. They have slots on the outside diameter and use a spanner wrench for nut tightening.
MEGA ER GRIP Collet Chuck has a high-precision collet, nut, and body; outperforming standard ER systems, improving machining capability and reducing cost.
Series 319 SW twin boring heads offer maximum performance and versatility for rough and semi-finish boring operations. Standard insert holders permit, balanced- and stepped-boring as well as additional accessories for back-boring, chamfering, and face grooving.