LS-714 Jade Bangle Diamond Core Drill Bits(Fine #120)

This kind of electroplated diamond core drill bits, made with #120 fine diamond powder, used for soft stone like amber, turquoise and coral.
Thinner than LS-713 diamond core drill in thickness, better cutting surface.
Size:3-90 mm

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LS-714 Jade Bangle Diamond Core Drill Bits(Fine #120)
This kind of electroplated diamond core drill bits, made with #120 fine diamond powder, used for soft stone like amber, turquoise and coral.
Thinner than LS-713 diamond core drill in thickness, better cutting surface.
Size:3-90 mm