Schaller M4 BM Light Bass Tuner Button
The Schaller M4 BM Light replacement tuner button is engineered to provide precise fitment and reliable performance for compatible bass tuning machines. Designed specifically as an authentic replacement part, it restores the clean aesthetic and smooth handling of your instrument's tuning system.
Crafted to exacting German manufacturing standards, this tuner button features an inner bore diameter of 0.17 in (4.3 mm) with a drive flat measurement of 0.15 in (3.9 mm) from surface to surface. Its sturdy construction ensures durable operation under constant tuning adjustments.
Supplied as an individual replacement button, it mounts directly using the existing screw on your tuning machine. It is fully compatible with Schaller M4 and BM Light bass guitar tuning machines.
| Brand | Schaller |
| Product Type | Bass Tuner Button |
| Compatibility | M4 and BM Light Bass Tuning Machines |
| Bore Inner Diameter | 0.17 in (4.3 mm) |
| Drive Flat Dimension | 0.15 in (3.9 mm) flat to flat |
| Weight | 0.02 lb |
| Quantity | 1 piece |
