Master Micro Precision: This ball vise is crafted from solid stainless steel with a 78mm (3") ball diameter, offering exceptional stability for fine work. Its compact 85mm height makes it perfect for microscope setups, delivering professional-level control in a compact format ideal for jewelry vise applications. Fluid Lock Rotation: Featuring a precision-engineered internal brake system, this ball vise allows smooth, controlled rotation—from free-spin to locked-in-place. Dual ball bearings ensure seamless movement, making it an ideal table vise for detailed engraving or delicate stone setting. Zero-Shift Centering Grip: With a self-centering jaw system and up to 53mm (2.13") opening, this jewelry vise secures your workpiece firmly without misalignment. Whether used as a hobby vise or for professional metalwork, it boosts accuracy and efficiency in every project. Vision-Relief Matte Finish: Designed for long sessions under bright lighting or magnification, this ball vise features an anti-glare matte finish that reduces eye strain. Whether you're crafting jewelry or using it as an engraving tool, it helps maintain comfort and focus. Pro-Grade Modular Set: Comes with 17 versatile attachments to support various precision tasks—from watch repair to gemstone setting. This full-set engraving tool transforms your workspace into a precision workshop, perfect for pros and hobby vise users alike. DZQ Ball Vise 3" Engraving Setting Tool 360°Rotation Professional Ball Vise 36PCS Attachment Jewelry Engraving Block Tools(Stainless Steel)