Gecko Gauge Siding Tool Adapter modification

This is a modification to the Gecko Gauge Model SA90338 siding tool from PACTOOL. This adapter allows reveals up to 11". The original only allowed 4-8" reveals. Tested and proven to work by a contractor, this tool is a simple add-on to your existing Gecko Gauge. Just remove the original and add the adapter. Note that due to the direction in which the part is printed, you may need to ream the hole slightly to improve the pin fit. It's recommended that this be printed out of a tougher material such as PETG, ABS or a PC-Nylon blend. It works fine with PLA but the longevity may suffer. Prints with no supports. 2026-3-8 Update: Added additional pictures.