.This professional 40'' inch 1in.drive breaker bar with swivel head is made of drop-forged, heat-treated chrome vanadium steel for superior strength and durability. With a highly polished finish for ease of cleaning, apperance, resists rust and corrosion. The length and weight behind this extra long breaker bar gives you maximum leverage when loosening those really hard to get off nuts. Corrosion, rust and slightly augmented nuts will be loosened with little effort. This professional quality 1'' inch breaker bar weighs just over 4kgs to help substantiate it quality and durability. Have a look at the pictures and you can see a comparision between this 1'' inch bar and a 3/4'' inch bar. Specifications • Professional quality • Length 39'' inches • Knuckle head 1” • Chrome Vanadium • Heat treated