Adjustable Bosshead Clamp Holder, 2 Packs

The screws turn smoothly and clamp tight without over-torqueing.

Great value to get two—saves me from buying separately

No need to force it—the clamp does the job with minimal effort.

I use it to hold glassware and condensers—never budges.

Used near a heating mantle—did not loosen or warp.