That a very nice clamp LBD. I think they cost $120. Plus $80. Freight.
I bought 4 of these 12” x 4” (304.8 mm x 101.6 mm) deep reach clamps at Harbor Freight and they work fine. The only set back is their 4” (106.6 mm) opening.
Since your our resident Clampologist I was wondering if you have an opinion on these clamps?
