BTC 8.25" BORE
BTC 3-Jaw Big Bore Chuck 19.75" OD X 8.25" Bore x 4.5" thick reversible jaws, (2 units available) excellent condition
ATS BT-7.3 ES
(2) Used 20" ATS SYSTEMS BT SERIES 3-JAW EXTENDED STROKE FRONT ACTUATED AIR CHUCKS Model BT-7-3-ES, with 7.3" hole.