Diamond Mortar Raking Bit,HIGHDRIL 5/16" x 1" (8mm x 25mm) 5/8-11 Thread Diamond Mortar Router for Old Mortar,Blown,Damaged Bricks or Natural Stone Removal

Features 1pc Diameter 8mm(5/16"), working length 25mm(1"), Grit 45/50, 5/8-11 thread Use the 25mm long bit in preparation for repointing work and the longer 100mm bit for behind pipes or complete brick removal High quality diamonds with vacuum brazed technology, longer life, faster stock removal and less vibrations than tungsten routers Ideal for fitting air bricks or wall vents, removing old mortar prior to repointing or removing blown, damaged bricks or natural stone