Adiseal Ultimate masonry multi-material carbide drill bit 6.5mm. Fastest masonry drilling speed (when drilling without hammer function). Drills masonry, concrete, brick, stone, tile, ceramic, wood, plastic, fiberglass & many other items. More durable & lasts longer than other drill bits. 1/4 inch quick change hex shank. No hammer drilling has many advantages including quieter drilling so less risk of damage to hearing, less risk of vibration damage to hands (vibration white finger syndrome), less risk of loosening mortar, less risk of breaking substrate and you can also drill closer to an edge compared to drilling with hammer function.