The Factory Pro FP-M-ACS301BK kit contains 0.5mm, 1mm, 2mm and 3mm collars, five of each, finished in black. These shims are handy for trimming gaps and refining component spacing on cars, buggies and other 3mm shaft applications.
Use the collars to correct sideplay, set bearing preload, or tweak drivetrain mesh. Their range of thicknesses makes it easy to experiment with small changes until the handling or fitment is right.
Factory Pro collars are valued for consistent sizing and a durable finish. They are useful for both casual hobbyists and those who frequently rebuild or upgrade their rigs.
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