TUNA Microblock Ball Vise With Inside Ring Holder Attachment Set

The TUNA Microblock with Inside Ring Holder Set is a precision stonesetter’s vise designed for professional and student jewelers alike. Built with a matte stainless steel finish and smooth ball-bearing rotation, this microblock provides stable 360° access to your work under a microscope or magnifier. Comparable systems cost hundreds more, making the TUNA an exceptional value in precision holding tools.

Key Features

• 18-piece expandable collet set holds rings from size 4 to 16 (15mm–25mm ID)
• Compact 3.5" (90mm) diameter microblock for detailed stonesetting and engraving
• Matte stainless steel construction resists glare under bright lighting
• Precision ball bearings ensure smooth, even rotation
• Self-centering jaws maintain secure, even pressure on your workpiece
• Compatible with microscopes, GRS systems, or magnifiers such as Optivisors

Specifications

What’s Included

• 1 TUNA Microblock (matte stainless steel)
• 18-piece expandable ring collet set
• 4-piece peg set
• 6 hex nuts
• 2-piece hex key set

Applications

• Stone setting and engraving under a microscope
• General jewelry work using a flex shaft or micromotor
• Ideal for holding rings and other small pieces securely during precision work

Notes

While optimized for microscope and pneumatic systems, the TUNA Microblock performs equally well in manual setups using magnifiers or bench visors. Provides the same precision and stability expected from higher-priced systems at a more accessible cost.

California Prop 65 Warning:
Cancer and Reproductive Harm. www.P65warnings.ca.gov.