This is a very nice hardtail bridge, and will fit any guitar with 2-7/32" string spacing.

Saddles:

Callaham's saddles are designed from original pre-CBS saddles, with some improvements. They've slightly lengthened the string slot as compared to pre-CBS saddles, so that the strings will not bind and bend against a sharp edge before going over the saddles, which reduces string breakage. Fender's current production saddles have their slots moved too far to the rear, causing string breakage and loss of downward pressure on the saddle, hurting both sustain and tone.

Callaham's saddles, like pre-CBS saddles, have threads running the entire height of the front skirt of the saddle. Fender's current production saddles have fewer threads and a shorter front skirt. Consequently, the Callaham height-adjustment screws are held more securely, with more thread contact, maintaining sustain and saddle stability.

There is a commonly-held belief that pre-CBS saddles were hardened, but Callaham states that every pre-CBS saddle they've tested measures on average only 50 Rockwell B. Callaham has chosen steel with a hardness of 95-98 Rockwell B for their saddles. Further, the steel work-hardens in the making of the saddle and is well over 115 Rockwell B where the string crosses.