This tool provides immediate feedback on whether a revolver's barrel and cylinder are perfectly aligned and if the cylinder crane or yoke has been bent, which can misalign the axis of each component with the barrel bore's axis, affecting timing and accuracy. It is ideal for identifying the cause of lead splatter during professional service inspections. Additionally, it serves as an excellent demonstration tool for explaining discrepancies to customers. The handle, featuring a knurled grip end, is threaded to accommodate interchangeable heads, with sizes precisely chosen to detect even minor misalignments.

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