4mm Shim Set, RC accessory, 0.1/0.2/0.3 mm

This 4 mm shim set brings fine mechanical adjustment to RC maintenance and model workshop tasks where shaft spacing needs a precise correction. The pack contains 30 shims in total, divided into 10 pieces each at 0.1 mm, 0.2 mm and 0.3 mm, so clearance can be tuned in small measured steps instead of forcing a single thickness into every job. Each shim fits 4 mm shafts and is intended for situations where more clearance is required. The thin ring format slips onto the shaft to change spacing directly at the point of assembly, which helps when rotating parts need a more exact position. Combining different thicknesses from the set also allows intermediate spacing values, giving more control during drivetrain setup, axle work or other moving assemblies that rely on accurate alignment. On the bench, the 3 thickness options support methodical trial fitting during maintenance, rebuilds or parts replacement. The grouped sizes make it straightforward to compare spacing changes, correct excess play and refine the fit of compatible components without replacing the shaft itself.