DescriptionThis item is a drill chuck adapter set. Made of stainless steelmaterials, safe and durable, not easy to damage. It will allow you to quickly connects with any impact driver or wrench, fast and quick conversion and keeping your work status.Features-Color: As Shown.-Material: Stainless steel. - Size: 3.20X2.20X2.20cm/1.26X0.86X0.86in- Made of stainless steelmaterials, very wear-resistant, light weight, can not be easily damaged. -Polishing surface features anti-oxidative, and anti-corrosion, wear-resistant and anti-impact. -Fine and strict workmanship and good quality ensure its long service life. -Equipped with chuck key to adjust the chuck for proper tightness. -Widely application, applicable for lathe, electric drill, milling machine, etc.