We have a Stihl MS 460 Rescue chainsaw on our Truck with the stihl oilomatic Rapid Duro Recue chain or "RDR". It costs around $175. This is not a traditional carbide tip chain that alot of departments are using because its cheaper. The RDR was designed for the Fire Service and in my experience can compete with the Bullet chain and Raptor chain. I have been impressed with it's performance cutting vent holes, but I am looking for anyone who has cut lexan glass with it or sheet metal roofs?