Type Model B L Clamping Nut
A S/ER11 17 110 ER11-T1 ER11-A
S/ER16 25 120 ER16-A ER16-T1
S/ER20 30 130 ER20-A ER20-T1
UM S/ER25-S 37 210 ER25-B ER25-T2
S/ER32-S 45 250 ER32-B ER32-T2
S/ER40-S 58 290 ER40-B ER40-T2
S/ER50-S 72 350 ER50-B ER50-T2
M S/ER25 168 38-42 ER25-B ER25-T2
S/ER32 190 250 ER32-B ER32-T2
S/ER40 210 55-63 ER40-B ER40-T2
S/ER50 240 78-85 ER50-B ER50-T2

S/ER8M 8 70 ER8-M
S/ER11M 11.5 90 ER11-M
S/ER16M 15 110 ER16-M
S/ER20M 19.5 120 ER20-M