• Highlight: MK Diamond MK-303 18" (457 mm) Professional segmented-rim lapidary blade built for high-volume slab cutting in large gemstone rough.
• Best For: Production lapidary operations and serious slab cutters working petrified wood, large agate, jasper boulders, and dense hardstone where throughput matters.
• Expert Note: The segmented MK-303 rim improves chip clearance on bigger specimens but still requires oil-based coolant — plain water voids performance and life expectancy on every MK-303 blade.