Especially engineered blades for exclusive use on 12 V HACKZALL™. Bi-Metal construction for increased tooth durability. Optimised tooth form for aggressive and faster cutting. Thinner blade body for better speed of cut and up to 35% more cuts per charge vs. standard Bi Metal blades. 75 mm scraper: for removing strong adhesive silicon, caulk, paint and rust. 125 mm wide scraper: for removing glue, silicon, caulk, vinyl, rust, paint and wallpaper. Grout removal blade: for removing damaged or moulded grout between tiles.