Round and tubular workpieces — pipe, tube, round bar, cylindrical components — cannot be held securely in flat-jawed vices because the round profile contacts each flat jaw on a single line only. Prism or vee jaws replace the flat profile with two angled faces that engage the round workpiece on four contact lines, providing significantly better grip. The Sykes Pickavant 53331500 Prism/Vee Pipe Jaws are 150mm-wide insert jaws designed to fit the Sykes Pickavant 150mm vice.
The vee profile distributes the gripping force across multiple contact areas, providing secure holding for round work during cutting, drilling, threading, fitting, and similar operations. Without prism jaws, round workpieces tend to rotate under any applied torque, making accurate work difficult and potentially dangerous.
The 150mm width matches the Sykes Pickavant 150mm vice format, providing full-width coverage of the vice jaws. Equivalent prism/vee jaws are available for the smaller 100mm vice (53331000) and larger 180mm vice (53331800), allowing workshops with mixed vice sizes to standardise prism jaw protection across their bench equipment.
Within the wider Sykes Pickavant vice jaw insert range, prism/vee jaws complement the flat-faced rubber-covered (53311500), fibre-covered (53321500), and polyurethane (53341500, 53351500) inserts that cover non-round workpieces.
Sykes Pickavant has been supplying professional vice and bench equipment for decades, and the prism/vee pipe jaw range reflects the brand's modular approach to vice configuration for specific workpiece geometries.
Additional Information
- 150mm Prism / Vee Pipe Magnetic Jaws compatible with any 6" Vice including the Sykes-Pickavant Unbreakable Vice.Designed for multipurpose application, offering efficient clamping and protection of the workpiece at the same time. Designed for; horizontal clamping of flat objects, horizontal clamping of round objects and vertical clamping of round objects.For thread cutting it is recommended only to use one prism jaw to avoid destroying the jaw. The vee-groove will align the workpiece and the serrations of the opposite vice jaw will keep it from turning.
- Equipped with an extremely powerful magnetic strip which easily attaches the jaw to the vice and ensures a rapid setup.
- The magnetic strip is only magnetic against the vice jaws and will not attract debris or fillings to the clamping surface nor magnetize the clamped parts.
- Features an extremely powerful neodymium magnetic strip. Holding force for a 100mm jaw is 3.5kg equivalent to 34N, for instance.
- These Magnetic Jaws can also be used in combination with one another. For instance, for taper pins or thin walled tubes use the Neutral or Prism / Vee Pipe together with the Rubber option. For irregularly profiled parts with one flat surface use the Fibre covered on the flat surface and the rubber covered on the profiled side.
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