For exact alignment tasks the Factory Pro FP-M-AC5005BK collars provide repeatable 5mm spacing with a tidy, snug fit. Their slim 0.5t profile is ideal where small adjustments matter.
These collars are useful in a wide range of locations on a model, including suspension pivots, axle spacing, and light gearbox shimming where 5mm components are used.
Made to resist distortion during repeated use, the black collars keep their shape and help preserve your setup settings between runs and maintenance sessions.
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