This right angle clamp or bosshead has a ~12mm (7/16") opening for our 33753 4 finger clamp or the vertical rods on support stands; only $5.95.
If you slide a rod in sideways, it can handle a rod that is ~20mm (3/4") in diameter.
Clamp holders are used to attach 4 finger clamps to the support rods of labstands. These clamps can be rotated while supporting flasks, test tubes & other glassware or be positioned at varying distances from the rod.
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