The Factory Pro FP-M-AC3030BK 3mm x 3.0t Collar set is a straightforward solution for RC hobbyists who need accurate spacing control. These collars let you make small adjustments that help maintain consistent gear mesh and correct wheel spacing, improving reliability during track sessions and backyard runs.
These black collars work across a wide range of RC chassis where a 3mm diameter spacer is required. With a 3.0t thickness they are suitable for fine tuning suspension link spacing, axle positioning, and gearbox clearance to sharpen handling and reduce drivetrain wear.
Made to resist routine wear, the Factory Pro collars deliver dependable service while staying economical. The 10 piece pack keeps spares on hand so you can quickly swap or test different shim thicknesses without breaking a build session.
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