Main Parameter: Product: Ball vise. Material: Stainless steel. Ball diameter: 78mm (3 inch). Height: 85 mm (3.34 inch). Max. opening: 54 mm (2.13 inch). Base diameter: 98 mm (3.85 inch).

Self-Centering Jaw System: The mini ball vise has a self-centering jaw system made for stone setting, small engravings, and other precision work.

Rotational Brake System: The internal rotational brake system lets the user choose the amount of rotational resistance from free to locked. There is a double ball bearing system for smooth rotation without looseness or wear inside.

360 Degree Rotation: The spherical bottom sits in a socket ring so you can tilt it in any direction. Flexible operation 360 degree hemispherical rotation, fine workmanship, sensitive operation.

Wide Application: The full set standard block ball vise engraving setting tool is perfect for stone setting, small engravings, and other precision work. Designed for a unique combination of solid work support in a small and maneuverable size. Its low profile is suited for microscope work.