This 10-pack 45mm excavator bucket pin shim washer set is designed for adjusting clearance in bucket linkage systems on mini excavators. It is widely used to eliminate excessive gaps between bucket pins, arms, and bushings, ensuring smoother and more stable machine operation.  By properly spacing and aligning bucket components, these shims help reduce wear, prevent mechanical looseness, and improve overall digging accuracy and equipment lifespan.  Made from durable heavy-duty steel, these spacer washers are suitable for demanding construction environments and are an essential maintenance part for excavator owners, repair shops, and contractors.