Timber Tones are designed around the classic 351 shape. They are 2.5mm thick, chamfering down to 0.7mm at the playing tip. They are CNC milled to precise tolerances from the very best quality exotic timbers. Purpleheart is a mid hardness timber which gives a rounded and balanced tone and is suitable for both electric and acoustic guitars. Warm mellow tones can be achieved on an electric guitar however the relative hardness of Purple Heart is likely to slightly brighten the tones of most acoustic guitars.