4.5 in. Segmented Rim Diamond Blade for General Purpose (2-Pack)The Makita 4 1 2 in. Segmented Rim Diamond Blade is ideal for general purpose cutting applications including block, brick and cured concrete. The segmented slots are engineered to deliver a faster yet cooler cut. Diamond blades are part of Makita's growing line up of solutions for concrete applications. Taller 13 mm segments are designed for longer life and faster cutting Up to 4X longer life than competitive blades For cutting concrete, block, brick,