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NEW! StewMac Precision Fret Puller
NEW! Triple Tree String Retainer
Celestion, Eminence and Jensen speakers!
The only OM kit available with the features from the original era!
Modeled after a 1933 Martin OM-28, our OM design is the perfect build for the technical player.
How to determine string action with the String Action Gauge.
Measure string action (the height of the string above the fret) at any point by
placing the gauge behind the string. The string height markings are at increments
of .010" (ten thousandths of an inch). When the bottom of a mark aligns with
the bottom of the string, that measurement is the string height at that point.
The markings themselves are .005" thick, so referring to the top of a mark
instead of the bottom adds .005" to the measurement. In this way the progressive
string height scale measures in .005" increments.
String action specs
The suggested measurements listed here refer to the string height at the 1st fret
and also at a higher fret. Measured for the outermost bass and treble strings.
Lay a straightedge across the frets and measure the clearance at the 8th. (Or
put a capo at the 1st fret and press a string down at the highest fret —
the string becomes the straightedge.)
Suggested action settings
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