BMB G&W RGLE NOTCHES RECTIFIED FOR BASS DIAPASON 30.00''/34.00''

Designed for luthiers and instrument technicians, it enables precise checking of neck straightness and Fingerboard flatness without being hampered by frets.

Thanks to its fret-matched notches, the ruler rests directly on the fingerboard, enabling precise evaluation of the neck relief and highly accurate truss rod adjustments. This model is double-sided, with one side suitable for 30" short-scale basses and the other for 34" long-scale basses, covering the majority of instruments on the market.

Made from machined stainless steel, the ruler is laser-cut and then ground (flat machined) to guarantee perfect flatness and reliable measurement during tuning operations, fret planning or neck diagnostics. It's a sturdy, durable tool, particularly suited to use in lutherie workshops or for professional bass maintenance.

Technical specifications :

Compatible Scale lengths: 30" (short scale) and 34" (long scale)
Material: stainless steel
Manufacture: CNC laser-cutting followed by surface grinding for maximum precision
Length: approx. 690 mm
Width: approx. 40 mm
Thickness: 3 mm
Function: control of neck straightness and Fingerboard flatness
Use: truss rod adjustment, neck diagnostics, fret work
Compatibility: short-scale and long-scale basses