Review on Sydien Flange Coupling Coupler Connector by Ronnie Segobiano

I was actually hoping to find 3/8" shaft flange rings but couldn't find them at a reasonable price so I decided to get them and just get the 8mm -Increasing the bore to 3/8" It was easy enough on my drill press. I also increased the size of the mounting bolt holes on the flanges. It took me 5 minutes to switch all four parts to the specs I needed. It's hard, going wrong with this 4 piece set when other sellers charge as much or more for a piece.