These replacement blades have unique Blade Over Shaft (B.O.S.) technology to deliver an ultrashort and compact head for unmatched accuracy and penetration. Hardened, Rock-Buster stainless steel tips are .040" thick with a 1-1⁄4" cutting diameter for increased penetration. Ultratight machining tolerance ensures perfect balance and head-to-head consistency. Per 9. Made in USA.
Cutting diameter: 1-1/4".