This Trade Series diamond tipped multi-tool blade has a wavy toothed design for increased grout removal speed and larger surface area when plunge cutting into brick, mortar, plaster and concrete. Excellent for grout removal and detailed chasing out for cables and socket boxes.|The Trade Series contains a huge range of high-quality multi-tool blades and accessories designed to equip trade users with an accessory for any and all requirements. Extend the capability of your multi-tool with the wide range of cutting, scraping, sanding and grinding accessories in the Trade Series.