Measure E to E at the bridge
With the strings seated in their normal positions, measure from the centre of the low E to the centre of the high E where they contact the saddles. Keep the ruler square to the strings. A photo taken directly above the bridge helps show the measurement without perspective distortion.
For six equally spaced strings, divide the total by five to find the adjacent string pitch. A 52.5 mm total has 10.5 mm gaps. This pitch is not automatically the width or diameter of the saddle itself.
Exact conversions versus catalogue labels
One inch is exactly 25.4 mm. Fractional-inch descriptions are often used as nominal product labels; compare the actual metric dimensions and drawing instead of treating a rounded label as a machining tolerance.
2-1/16 inch = 52.3875 mm total; 52.5 mm is a nearby nominal catalogue size.
2-1/8 inch = 53.975 mm total, commonly rounded to 54 mm. For a nominal 54 mm total with equal gaps, 54 ÷ 5 = 10.8 mm per gap.
2-3/16 inch = 55.5625 mm total; divided by five, that is 11.1125 mm per gap, not 10.5 mm.
2-7/32 inch = 56.35625 mm total; keep this separate from 2-3/16 inch.
Check the saddle and bridge together
The bullet set linked here lists an 8 mm saddle diameter and nominal 54 mm string spacing. The other three-saddle set lists 7.8 mm diameter, 21.6 mm length and 6.9 mm height. Compare those dimensions with your bridge and its adjustment range.
A shared Tele-style description does not make three-barrel and six-saddle hardware interchangeable. Check the number and position of intonation screws, thread size, string-through or top-load path and plate clearance. The linked conversion assembly lists 72.9 mm overall length and requires more than 72.9 mm of internal space; that is one check, not a complete fit guarantee.
Compensation still needs an intonation check
Compensated saddles give paired strings different contact positions. Follow the indicated saddle order and orientation, then set intonation for the strings and tuning you use. Compensation is not a promise that every string will intonate perfectly on every guitar.
Frequently asked questions
Does 10.5 mm mean the whole bridge is 10.5 mm wide?
No. It may describe adjacent string pitch or an individual saddle width. Six strings at 10.5 mm pitch span 52.5 mm from low E to high E. Check the field label on the product drawing.
Is 2-3/16 inch the same as 52.5 mm?
No. 2-3/16 inch converts to exactly 55.5625 mm. Measure your bridge and compare the product dimensions instead of substituting these sizes.
