Faceted Marquise Sunstone Select Size:8x4mm These 6" diameter wheels are

These 6" diameter wheels are sized for bench grinders and similar stationary equipment

Repeatable positioning: Helps you return to the eyepieces quickly when alternating between bench tasks and microscope work

Flat roller configuration suitable for sheet and strip reduction

returning the jaws to an open position with consistent tension

consider purchasing additional inner duplex springs (single piece: part number 134

Faceted Marquise Sunstone Select Size:8x4mm These 6" diameter wheels areOregon Sunstone is a natural, all American gem, sourced exclusively from mines in the state of Oregon and receiving no treatment of any kind. A member of the Feldspar mineral group, Oregon Sunstone is prized for its lively, sparkling luster caused by flat, reflective copper inclusions contained within the stone. This optical phenomenon known as aventurescence and often referred to as Schiller gives each stone a distinctive, glittering brilliance