Features:* Material: Chrome Vanadium Stainless Steel * Color: Silver * Size: 1/4" Square Hole to 1/4"(6.3mm) * It is used for screwdriver bit, socket adapter, step drill bit, bevel converter * Bits for 6.3mm series screwdriver bits * It is forged from high quality 50BV30 stainless steel chrome vanadium steel, strong and durable.* The mirror finish is polished and chrome plated, which has strong corrosion resistance and is not easy to rust.* Quantity: 1 Pc Package Contents: 1x 1/4" Square Hole to 1/4" Hex ConverterNotes:1. The actual colors of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.