Diamond Way Silent Blade Concrete & Paver 20"
https://diamondway.com.au/shop/318795-diamond-way-silent-blade-concrete-paver-20-18551
https://diamondway.com.au/web/image/product.template/18551/image_1920?unique=d170348
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20"-500mm Dark Green Silent Block Blade. A premium laser welded blade for cutting concrete blocks,sandstone and other abrasive materials. (wet cutting) Bore size 25.4mm. Proudly Australian Made.