Core Drill Extension 200mm
https://diamondway.com.au/shop/318741-core-drill-extension-200mm-18497
https://diamondway.com.au/web/image/product.template/18497/image_1920?unique=234b8f4
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Core Drill Extensions. Quality drill extentions available in 200mm,300mm,400mm lengths ( 11/4" UNC) fitting. Adaptors also available to suit (1/2"BSP).