01Two Sets of Jaws
Many bench vises carry two gripping surfaces: the main flat jaws for general work and a set of pipe jaws tucked below or behind them. The bench vise parts breakdown places both on the body.
02The V-Groove Principle
Pipe jaws are cut as a V. Lay a round bar or pipe into the V and it self-centers — the two angled faces seat the tube along its axis instead of letting it roll. The angle and the tooth pattern follow the same jaw design rules as flat jaws, tuned for curved contact.
03Where Pipe Jaws Sit
On a combined vise, pipe jaws sit in the throat below the flat jaws, so you can switch from a flat part to a tube without changing tools. On a dedicated pipe vise the whole tool is built around the V and the tube, with capacity sized to pipe diameters rather than general work.
04Pipe Vise vs Bench Vise with Pipe Jaws
A dedicated 4″ pipe vise or 6″ pipe vise holds and rotates pipe for threading and cutting, often with a hinged or bench stand. A 6″ bench vise with pipe jaws covers occasional tube work alongside normal jobs. Match the tool to how often pipe appears in your work.
05Grip, Force and Safety
A round part wants to turn under the handle, so pipe jaws need both a firm V and enough clamping force to stop rotation — delivered through a rigid body. A pipe that slips under a saw is a safety problem, not just a nuisance.
Sizing pipe-jaw capacity for a product line is an OEM specification decision on the same platform.