ER16 Tap Collet .318x.238 8.1x6.0 5/16" Mechanical Seal
ER20 Collet 1/16" (.063-.047)
ER20 Collet 1/2" (.500-.469)
ER20 Collet 1/2" (.500-.484) Mechanical Coolant Seal
ER20 Collet 1/4" (.250-.219)
ER20 Collet 1/4" (.250-.234) Mechanical Coolant Seal