Specifically, the “XH Chuck Assembly” and “Seal Kit, XH Chuck, C/W Piston” are products listed under their “Chucks & Rod Clamps” category. The XH Chuck Assembly (58-1000) includes features like spring applied, hydraulic release, and a holding capacity of 34,000 lbs (15,500 kg). The Seal Kit, XH Chuck, C/W Piston (58-0110) seems to be a related accessory or component for this assembly.