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Instantly determine if the revolver's barrel and cylinder are in perfect alignment and see if the cylinder crane or yoke has been sprung, throwing the axes out of line with the barrel bore. This tool is ideal for timing, accuracy jobs, determining the cause of lead splatter, and professional service inspections. It is also a great tool to use when demonstrating to customers.

The handle features a knurled grip end and is threaded to accept any of the interchangeable heads, which have been carefully crafted to identify small misalignments. The .38 caliber heads come in two diameters, one for Match guns needing the utmost precision performance, and another for Service guns that may not be thoroughly clean and do not need the same level of accuracy. Additionally, there is a unique head for the S&W K-22, which has a marginally smaller bore.