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12mm Hex Wheel Adapter for 3mm Shaft (2-Pack)

A pair of aluminium adapters that convert a 3 mm diameter motor shaft to a 12 mm hex output, compatible with standard hobby RC wheels. Each adapter is 17 mm long and secured to the shaft with M3 set screws for a firm grip.

Key Features

  • 3 mm to 12 mm Hex Conversion – Mount standard RC wheels on 3 mm motor shafts
  • Aluminium Construction – Lightweight and durable
  • Set Screw Mounting – Two M3 set screws per adapter for secure shaft attachment
  • 17 mm Length – Compact profile

Ideal For

  • Robotics projects using micro gearmotors with 3 mm output shafts
  • Mounting hobby RC wheels on custom chassis
  • Pololu micro metal gearmotors and similar 3 mm shaft motors

Package Contents

  • 2× 12 mm Hex Wheel Adapters (for 3 mm shaft)
  • 2× M4 screws (for securing wheels to adapters)
  • 4× M3 set screws (for securing adapters to shafts)
  • 1× 1.5 mm Allen wrench

The 12mm Hex Wheel Adapter for 3mm Shaft (2-Pack) appears in the following collections:

SKU PL-2682