ER collet chuck

• For DIN 6499 ER collets
• Pre-balanced to G 2.5 / 25,000 rpm
• Alloyed case-hardened steel with a core tensile strength of min. 950 N/mm², case-hardened to HRC 60 ± 2 (HV 700 ± 50), case depth 0.8 mm ± 0.2 mm, burnished
• Taper angle tolerance quality < AT3 in accordance with DIN 7187 and DIN 2080, max. true running accuracy < 0.005 mm
• Supplied with clamping nut
• Additional shank designs and AD/AF version available on request
• ER16 / 426E* tool holding fixtures supplied with hexagonal nut

DIN ISO 7388-2 / MAS BT JIS B 6339

• Internal coolant supply