Product: Ball vise. Material: Stainless steel. Ball diameter: 78mm (3 inch). Height: 85 mm (3.34 inch). Max. opening: 53 mm (2.13 inch). Base diameter: 98 mm (3.85 inch) | Full set standard block ball vise engraving tool: This block is made of solid galvanized steel, come with 17pcs attachment and 3-inch diameter ball; it has outstanding quality and value | Like larger vises, the Micro Block is made of solid stainless steel and treated with a special anti-glare treatment to reduce eye strain. It has a self-centering jaw system and an adjustable internal braking system that allows the user to select the amount of rotational resistance | 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 | The engraving ball vise 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
