Description: 【Material】: Impact socket adapters are made of chrome vanadium steel, which is strong and wear resistant, ensuring long term performance and reliability 【Design】: Square ratchet socket adapter set adopts a four corner arcs square head design, which is high in hardness and impact resistant. The through hole at the drive end can firmly lock the adapter to the drive handle 【Function】: 1/4" 3/8" 1/2" 3/4" socket adapter, high reliability and performance, can reduce wear and withstand greater torques generated by impact tools 【Quality】: Drive socket reducer set, professional manufacturing, stable performance, long service life, is an ideal tool for auto repair shops, factories, homes and personal repairs 【Widely applicable】: Reducer converter impact adapter set is used with manual wrenches, torques wrenches, pneumatic wrenches, electric wrenches, etc Specification: Material: Chrome Vanadium Steel Size Chart: 15.2 cmx9 cmx5 cm/5.98 inchx3.54 inchx1.97 inch Package Includes: 6x Impact Socket Adapters Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.