HiRunER Precision ER Collet Chuck, SK 40, Projection: 70, for ER Collet: 25

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. Advantage: 3 um radial run-out with a 2 um clamping nut, 6 um radial run-out with a 5 um clamping nut. Extremely strong holding force up to factor 2better than the standard ER chuck. Vibration reduction effect due to 2-part clamping nut size 11M and 16M 1-piece. 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. 308600 - 308806, PS wrenches No. 308820 - 308835, ER chuck keys No. 309757, 309758 for 11M and 16M, Fahrion ER collets No. 308901 309434. ER collets No. 308901 309432, hook wrench No. 628400 or torque wrench No. 309749 or 628520. Note: Clamps only nominal Dia up to shank Dia tolerance h 10. Do not use the clamping nut in combination with a sealing washer. Use in combination with Fahrion collets. The blue design ring must be removed for Fahrion HP 2m ER collets. Use the precision collet chuck always in conjunction with the precision clamping nut No. 309617. Machining strategy: HSC Clamping range: 1 16 mm Overhang dimension A: 70 mm External Dia D: 44 mm Spare ER clamping nut No. 309617: 25