Material: special composition for tempering and hardening: forged body: fully quenched and tempered. Surface protection: chrome in accordance with ISO 1456: 2009. Ergonomic two-part handle for tough jobs. Manufactured fully in accordance with ISO 3315. Advantages: 40 teeth: 9 ° working angle: security lock system: the key is released from the ratchet simply by pressing the button. https://uniortools.com/es/product/188-1-1ABI-carraca-1-4-reversible#5217