HIGHDRIL Diamond Mortar Raking Bit 2 Pieces 8 mm x 25 M14 Thread Cutter for Old Mortar, Blown, Damaged Brick or Natural Stone Removal

Diameter 8 mm, working length 25 mm, grit 45/50, M14 thread Use the 25mm drill as preparation for re-grouting work and the longer 100mm drill for behind pipes or for complete removal of bricks High-quality diamonds with vacuum brazed technology, longer life, faster material removal and less vibration than tungsten cutters Ideal for fixing ventilation tiles or wall slits, removing old grout before re-grouting or removing blown damaged brick or natural stone Machine: angle grinder M14 thread, ideal for both professional contractors and DIY enthusiasts