Vises
Vises you bolt to a bench — not an F-clamp you take off.
KS Tools
KS Tools
MULTI ANGLE HOBBY VICE, Stanley
Stanley
Pipe vice, 1/8"-3", Rothenberger
Rothenberger
A vise stays on the bench and holds a workpiece with real force. Portable clamps live under Hand tools. The bench they sit on is in this group.
Choose jaw width and whether you want a swivel base.