Screwdriver Hex Converter Bit Bit Holders Bits Converter 4PCS Adapter Screwdriver Socket Socket Adapters Square Screwdriver Hex Converter Bit Bit Holders Bits Converter 4PCS Adapter Screwdriver Socket Socket Adapters Square Features: *Material: chrome vanadium steel *Color: silver *Size:1/4" square hole to 1/4"(6.3mm) *It is used for screwdriver bit, socket adapter,step drill,chamfer converter *6.3mm series screwdriver head connector *It is forged with high-quality chrome vanadium steel 50BV30, strong and . *The mirror finish is polished and chrome-plated, which has strong resistance and is easy to . *Quantity: 4pcs Package Contents: 4 x 1/4" square hole to 1/4" hex converter Notes: 1. The real color 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.