Advantage :
Excellent concentricity in the system ( chuck + collet + clamping nut), 3µm radial run-out with a 2µm collet, 6µm radial run-out with a 5µm collet.Extremely strong holding force (up to factor 2 better than the standard ER chuck).Vibration reduction effect due to 2-part clamping nut.

Application :
For clamping tools with plain shank in collets to DIN 6499 − Form A and B.

Supplied with :
Precision clamping nut.

Optional extras :
Pull studs (PS) No. 308760 – 308802, PS wrenches No. 308820 – 308835, ER chuck keys No. 309757, 309758 (for 11M and 16M); ER collets Fahrion No. 308901 – 309434. ER collets No. 308901 − 309432, hook spanner 628400 or torque wrench 309749 or 628520.

Version :
External and internal tapers are ground. All shanks are hard turned for smooth running. Including RFID / Balluffchip bore, high-performance clamping nut (up to 25000 rpm).

Note :
Clamps only nominal ⌀ up to shank ⌀ tolerance h 10.Do not use the clamping nut in combination with a sealing washer.Use it in only combination with Fahrion collets.The blue design ring must be removed for Fahrion HP 2µm ER collets.