Name: ER-Type Nut

Material: Chrome Steel/20CrMnTi

Standard Models: ER11A-ER16A-ER20A (Hardness: 46-50)

Precision Models: ER11A-ER16A-ER20A (Hardness: 52-55)

Features: Precision nuts are suitable for ER-type tool holders, tool shanks, and extension bars to clamp drills,
boring heads, engraving tools, and cutting tools.