Description FEATURES: Manufactured and tested generally in accordance with DIN3122 and ISO3315 Specifications Expert Quality, extension bar set, comprising of three extension bars in the following sizes, 75mm, 125mm and 250mm. The extension bars are manufactured from hardened and tempered chrome vanadium steel capable of withstanding the relevant DIN standard 20%, while the thick chrome plating provides added corrosion protection. The male drive ends are fitted with spring-loaded ball bearing, aiding socket retention, while the knurled shaft delivers extra grip, both features especially useful in vehicle workshop environments.