ORing jig
Free     Myminifactory     TeeemNZ

O-Ring jig

ORing Jig to help glue your orings perfectly You need to print one Slide and two jigs for the size oring material you working with Included popular sizes 178 262 2 and 3mm  Once printed use a drill bit the same size as your oring ...

similar models —

O-Ring jig alternatives
OBAG handle Nut
Fabrizio
Ring  Holes
3D-mon
Ring
Dzecko
ring
slaavkoo