DeWalt Dry Diamond Blade 115mm (2 Pack)DeWalt DT20455 QZ 115mm Diamond Cut Off Discs Clean, Fast Masonry Cutting The DeWALT DT20455 QZ 115mm Diamond Discs are precision engineered for high speed, dry cutting of masonry materials including concrete, block, brick, and paving. Designed with a segmented diamond rim and a thin 2. 1mm kerf, these discs deliver fast, clean cuts with reduced friction and minimal material loss ideal for professional builders, landscapers, and tradespeople using