• Highlight: MK Diamond MK-303 20" (508 mm) Professional segmented-rim lapidary blade with 0.5" kerf for large-format gemstone slab cutting.
• Best For: Production lapidary shops and rock-cutting professionals slabbing large agate, petrified wood, and dense hardstone specimens on heavy-duty slab saws.
• Expert Note: Use only petroleum, synthetic, or mineral oil coolant; at 20" the segmented rim depends on consistent coolant flow to flush kerf and maintain the cool cut MK-303 is known for.