DAYTON, 1/2 in Compatible Shaft Dia, 1/4 in Shaft Extension Dia, Shaft Adapter Kit - 4X098|4X098 - Grainger
Amazon.com: 3Pack ShareGoo Metal 3.17mm to 5mm Shaft Adapter Change-Over Motor Axle Sleeve Compatible with Hobbywing HSP 540 550 EZRUN-3656 Motor RC Car Boat Plane : Toys & Games
Steel Shaft Adapter - 5mm Motor Shaft to 5mm Flexi Shaft
92-A8110 : Motor Shaft Adapter, 3/16" Threaded to 1/4" Round | AMRE Supply
MMTool PRODUCTS DC 775 Motor 5mm Shaft Adapter For Drill Chuck (3/8 24UNF THREAD) : Amazon.in: Industrial & Scientific
TETRIX® MAX Hub/Motor Shaft Adapter (W39278)
Bushing Shaft adapter
HobbyWing Motor Shaft Adapter 3.2mm to 5mm Length 12,2mm (HW86060140), 3,50 €
5mm-8mm Shaft Coupling Rigid Coupler Motor Connector With Spanner - YouTube