removing a spring cover from an opening of an expandable tool, wherein the spring cover is disposed radially outside of a resilient member arranged along a longitudinal axis of the expandable tool, wherein removing the spring cover comprises uncoupling the spring cover from an upper plate that interfaces with an expandable block in the opening, and the resilient member is configured to bias an expandable block in the opening to a retracted configuration; and

inserting a first spacer between the spring cover and the upper plate, wherein a length of the first spacer along the longitudinal axis limits movement of the expandable block to an expanded configuration.