Thread and taper ground in a single setup for highest concentricity.
Internal clamping nut with an external thread.
ER collet chucks with internal thread.
ER clamping wrench, No. 309680 − 309740.
Single open ended spanner (for size 16), No. 613300 size 25.
Sealing rings No. 309625; 309630; 309635; 309645.
Collet chuck and clamping nut are balanced separately!