Ketel Marte is a believer in Birch wood, swinging a B45 PIKE4 custom model.
According to B45: “The PIKE4 features a flared knob for great control. Its long barrel will give a very balanced feel. The smaller barrel profile allows us to use very dense wood used to turn this model…”
Marte’s bat model is available for customization via B45Baseball.com for $180.