AIM Attachments 1720 Feddern Avenue , Grove City , OH 43123 USA About Solutions products Downloads Companies AIM Attachments Products Heavy Duty Thumbs Heavy Duty Thumbs 0 Share Mechanical, Hydraulic, and Progressive Link Styles. Thick AR 400 Steel tines with serrated teeth. Three working positions. Thumb can be folded away when not in use More about Heavy Duty Thumbs Downloads related to this product Heavy Duty Thumbs Brochure Customer reviews No reviews were found for Heavy Duty Thumbs. Be the first to review! Add your review Publish your review Great! review successfully added!