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These 12mm Hex Adaptors allow you to attach 12mm hex drive wheels to 3/8" drive shafts. Simply insert a 3/8" shaft (D-shafting is recommended) into the adapter and tighten the set-screws. These 3/8" hubs are built more robust than our 1/4" hubs and feature 4 setscrews per hub.
Hex is 6mm deep. Overall length of the entire hub is just over 26mm. 3/8" bore for common shafting used in r/c pullers. Includes 4x m6 set screws and m4x10 button head screws to secure the wheel to the hub (running a washer would be optionally recommended depending on wheel).
Includes:
2x 12mm hex hub w/ set screws and wheel screw