• Best For: Masonry crews raking out mortar joints with a 4-1/2 inch angle grinder, where a compact blade is easier to control.
• Highlight: A .250 inch wide cut that opens mortar joints enough for fresh mortar, on a 7/8 inch to 5/8 inch arbor.
• Expert Note: This is the 4-1/2 inch size of the MK-299DT; its smaller diameter reaches less deeply than the 5 inch and 7 inch versions, so match it to shallow joints and 4-1/2 inch grinder guards.
