Product Dimensions: Featuring a 0.39-inch SDS-plus shank on one side and a standard 1/4-inch hex shank on the other, the adapter fits most universal 1/4-inch hex bits. : Made of high-quality alloy steel, it offers low resistance and high hardness for extended durability compared to standard chuck adapters. The knurled surface provides anti-slip grip for quick bit release. The SDS-plus connection ensures a secure and stable fit, reducing vibration during rotation and improving operational efficiency. The hex connection allows compatibility with various hex-shank accessories, including screwdriver bits, countersink bits, and drill bits. The adapter undergoes quality control testing and meets high safety standards for reliable performance. Wide Application: Suitable for most drill bits and cordless electric screwdrivers. Ideal for daily maintenance, automotive repair, garage use, warehouse tasks, office applications, and home projects. Material: Alloy steel Color: Silver Package Contents: 5 x SDS-Plus drill chuck adapters Note: Color may vary slightly due to lighting and screen settings. Measurement tolerance is ±1–3 cm.