The Progressive Link thumb can be used on every major brand of excavator, along with Werk-Brau or other brands of attachments. Each unit is custom designed to match the bucket width and tip radius. The thumb retracts against the stick, so it can be left on the machine during normal excavation. Werk-Brau thumbs are not recommended for prying use.
Specifications: Werk-Brau EZG Multi Tine Grip Bucket Thumbs