@cameraparts4you according to the service manual, available [http://manuals.ryobitools.com/system/files/451/original/TS1551_282_eng.pdf?2017|here], your Ryobi has a blade arbor of 1in (25.4mm)
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@cameraparts4you according to the owners manual, available [http://manuals.ryobitools.com/system/files/451/original/TS1551_282_eng.pdf?2017|here], your Ryobi has a blade arbor of 1in (25.4mm)
@cameraparts4you according to the service manual, available [http://manuals.ryobitools.com/system/files/451/original/TS1551_282_eng.pdf?2017|here], your Ryobi has a blade arbor of 1in (25.4mm)