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clamp-on finned cooler half for the 2 in tube OD (Ø50.8 bore) × 56

clamp-on finned cooler half for the 2 in tube OD (Ø50.8 bore) × 56: 3 mm sleeve, fins Ø88 × 2 at 6 pitch, ears with 2 × Ø4.5 (M4) each side

Exact dimensions. True size, no printing tolerance added. Threads are plain cylinders at the major diameter.

STEP STL free, CC BY 4.0 (credit "Xem Studio")

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From the full sheet

Tri-clamp finned cooler: clamp-on halves for a 2 in tube: every size, notes, mating features and sources. What finned cooler fits a tri-clamp fitting?