Product Overview
Features:
- Three precision-ground straightedges in one tool: two notched edges and one notch-free edge.
- F-25.5 notched edge fits fret scale lengths from 25.34 in (64.36 cm) to 25.625 in (65.09 cm).
- G-24.75/P-25 notched edge fits fret scale lengths from 24.625 in (62.55 cm) to 25 in (63.5 cm).
- Notches span 17.6 in (44.7 cm) and contact the fretboard between 22 fret slots.
- Notch-free precision straightedge measures 17.6 in (44.7 cm); edges are ground to an accuracy tolerance of +/-0.00125 in/ft (+/-0.1042 mm/m).
Description:
Use the MN821 to check fretboard flatness and assist with fretwork on most electric and acoustic guitars. The notched edges also help measure neck relief so you can assess whether a truss rod adjustment may be needed. The two notch patterns cover a range of guitar scale lengths, while the third edge rests on top of the frets for a notch-free flatness check.
