Tackle the job with these highly durable XP4 All-Purpose Segmented Diamond* Blades. Designed for 5X longer life**, these extreme performance blades are built with 20% more diamonds than previous models and with laser-welded segments you'll need to replace them less often. Quickly cut through hard concrete with a patented arrow blade design. Cut deep with aerodynamic vents that keep the high-alloy steel core cool for extended use.