ABM 3710b Single Bass Bridge

I'm a guitar builder and recently use mostly ABM hardware.
This is simply the best monorail bridge. Very thought out design, massive, made from brass. Saddles are adjustable for every direction. It also has the ability to run string through body. Quality of material and manufacturing is top notch. Sounds great with lots of clarity. Very ergonomic too.
These are not cheap but worth every cent.

Very high quality parts made to very high tolerances out of carefully selected materials. Functions simply and well.