28 pcs 3-30mm Nylon Bead Rounding Concave Holder 6mm shank for Polishing Jade Bodhi Seeds Walnuts

Outer Diameter:

3mm-30mm -28 pcs MIX ( Please contact us before order if you need different combination )

Shank Diameter:

6mm 1/4"

Material:

Nylon Plastic ( It is holder, no abrasives )

Application:

It is holder, no abrasives. With 6mm rod, used on hand drill. The rod has to be inserted into the drill fully.

It is mainly used for ball-shaped bead, jade, and amber etc.