Manufactured from chrome vanadium steel hardened and tempered with a satin finish. Each ext. bar has a knurled ring for extra grip. Made from chrome vanadium steel hardened, tempered and satin chrome plated Contents: 50, 75, and 100mm long Manufactured and tested generally in accordance with DIN3122 and ISO3315 Specifications More information: Features | Type | Set |  | Product type | Extension bar |  | Drive size | 1/4 " |
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