Lab Series stones are made of pure aluminium oxide for adjusting PFM alloy without any hassle of carbon contamination while Hardies smoothen away fine scratches and assure fast polishing of the metal surface.
The Kit HP Contains: - 2 each x Lab Series White Stones No.1, No.2, No.3, No.4, No.5 for adjusting - 2 each x Hardie-Black (PC2) for polishing
Recommended Speed Range for Hardie & Lab Series White Stone: 5,000 - 30,000 rpm / Max. 30,000 rpm
