The redesigned HDT34 universal mechanical and hydraulic excavator thumbs feature an AR400 steel structure for a tight fit on any bucket. 8 in. wide and 34 in. long Designed to fit 4,000- to 12,000-lb.

"If a contractor already has a loader or mini excavator, but doesn’t have specific attachments ... Grapples, which can be as simple as a thumb and bucket, can be used to punch, grab and tear ...