BOSS, 8.2V with urethane edge. Hit two things with my "V" first was a curb that hit straight on, it stopped me dead, mouth hit the steering wheel, bit my lip, smashed the curb to smithereens(sp?), it tripped all right, the hinge destroyed the curb. The second and last thing I hit with the plow was a manhole lid, pulled that bad boy clean out of the hole and sent it flying above the hood of my truck. It broke out a piece of cutting edge that left a 6 inch dribble in the middle of my plow everywhere I plowed. After that I bought a Urethane Edge, will never go back. If you're afraid of melting the edge down then you probably don't have enough snow on the ground. V plow if you plow more than driveways.