• Best For: Hard brick and block cutting on a 12-inch saw with a 20mm metric spindle, where the 1-inch-bore 150624 will not mount.
• Highlight: Metric 20mm bore version of the MK Diamond MK-414D 12-inch - the arbor is the only difference from the imperial 150624.
• Expert Note: Confirm the saw spindle before ordering: a 20mm bore will not seat on a 1-inch arbor, and bushing from 1 inch down to 20mm is not a supported fit.