ER20-12.7/ *D (Outer Diameter): 21 |*d (Inner Diameter): 12.7
ER32-3 Collet
Collet 3.0
ER32-6/ *D (Outer Diameter): 33 |*d (Inner Diameter): 6
ER32-4/ *D (Outer Diameter): 33 |*d (Inner Diameter): 4
ER32-3.175/ *D (Outer Diameter): 33 |*d (Inner Diameter): 3.175
ER20.6/ *D (Outer Diameter): 21 |*d (Inner Diameter): 6
ER20-4/ *D (Outer Diameter): 21 |*d (Inner Diameter): 4