14-Piece Fixed Head Ratchet Wrench Set, Metric, 72-Tooth Mirror Polished Chrome Finish

14-Piece Fixed Head Ratchet Wrench Set, Metric, 72-Tooth Mirror Polished Chrome FinishProduct Details:1. High-Tensile 40CR Steel ConstructionCrafted from durable 40CR alloy steel, this wrench set undergoes precise heat treatment to achieve an optimal hardness of HRC 38-42. The robust material ensures exceptional strength and torque resistance, effectively preventing rounding or shearing during demanding mechanical work on automotive, machinery, and equipment repairs.2. 72-Tooth Precision Ratchet MechanismThe heart of each wrench is a finely engineered 72-tooth pawl mechanism, providing a minimal 5-degree swing arc for effortless operation in tight, confined spaces. This high tooth count allows for rapid fastener turning with minimal handle movement, significantly improving efficiency and reducing user fatigue during prolonged use.3. Mirror Polished & Multi-Layer Chrome PlatingFeaturing a brilliant mirror polish and multi-layer nickel-chromium electroplating, these wipes offer superior corrosion resistance against oil, grease, and moisture. The smooth, non-reflective finish not only enhances durability but also allows for easy cleaning and provides a professional, long-lasting luster.4. Comprehensive Metric Size Range (8-24mm)This 14-piece set covers essential metric sizes from 8mm to 24mm, including 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 22, and 24mm. The complete selection ensures you have the right tool for a vast array of applications, from bicycle maintenance to automotive repair and industrial machinery servicing.5. Reinforced 50BV30 Steel Ratchet CoreThe critical ratchet mechanism is forged from upgraded 50BV30 chrome-vanadium steel, hardened to HRC 42-46 for maximum durability and wear resistance. This specialized construction delivers reliable, one-way engagement and withstands high-torque applications, ensuring smooth performance and an extended tool lifespan.Product Specifications:? Set Contents: 14 Fixed Head Ratchet Wrenches? Size Range: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 22, 24mm? Overall Material: 40CR Alloy Steel, HRC 38-42 Hardness? Ratchet Material: 50BV30 Chrome Vanadium Steel, HRC 42-46 Hardness? Ratchet Mechanism: 72-Tooth, 5-Degree Swing Arc? Finish: Mirror Polished, Multi-Layer Nickel-Chrome Plating? Drive Type: Fixed Head