4.5" Tuck Point Blade - 4.5"x .250"- 7/8-5/8 Arbor - Masonry Tuckpoint Blade For Concrete, Brick, Block, Pavers, Stone4 1 2'' X . 250"Premium Blue Boulette Tuck Point Blade Concrete Mortar Masonry Tuckpoint Blade 7 8'' 5 8'' Arbor 12mm Double Laser Welded Reinforced Diamond Segments Suitable For Wet Dry Use Extremely Fast Removal Of Grout and other Heavy Materials Features Wide U Gullets, Cooling Holes, And A High Number Of Segments For More Aggressive Cutting Application For Concrete, And Mortar Joint Removal Types Of Equipment: Angle Grinder, Circular Saw, And Tuck