Unique 8°taper design affords highest gripping power. True double angle, for extreme concentricity. 16 jaws giving powerful gripping and parallel clamping. A unique self-releasing system is built into the collet and claming nut to eliminate cutting tools sticking in collets. TypeABER1111.5mm18mmER1617mm27mmER2021mm31mmER2526mm35mmER3233mm40mmER4041mm46mm MetricSizeER11 Model#ER16 Model#ER20 Model#ER25 Model#ER32 Model#ER40 Model#1mm204-1010204-6010204-7010204-72101.5mm204-1015204-6015204-7015204-72152mm204-1020204-6020204-7020204-7220204-33202.5mm204-1025204-6025204-7025204-7225204-33253mm204-1030204-6030204-7030204-7230204-3330204-41303.5mm204-1035204-6035204-7035204-7235204-33354mm204-1040204-6040204-7040204-7240204-3340204-41344.5mm204-1045204-6045204-7045204-7245204-33455mm204-1050204-6050204-7050204-7250204-3350204-41355.5mm204-1055204-6055204-7055204-7255204-33556mm204-1060204-6060204-7060204-7260204-3360204-41367mm204-1070204-6070204-7070204-7270204-3370204-41378mm204-6080204-7080204-7280204-3380204-41389mm204-6090204-7090204-7290204-3390204-413910mm204-6100204-7100204-7300204-3400204-414011mm204-7110204-7310204-3410204-414112mm204-7120204-7320204-3420204-414213mm204-7130204-7330204-3430204-414314mm204-7340204-3440204-414415mm204-7350204-3450204-414516mm204-7360204-3460204-414617mm204-3470204-414718mm204-3480204-414819mm204-3490204-414920mm204-3500204-415021mm204-415122mm204-415223mm204-415324mm204-415425mm204-415526mm204-415627mm204-415728mm204-415829mm204-415930mm204-4160