MBS1 4mm Hex Bit Screwdriver Set, 9 PCS Durable S2 Tool Steel Double-Ended Bi…

The MBS1 9 PCS Bit Set is designed for durability and precision. Made from premium S2 tool steel, the 4mm double-ended bits are nickel-plated for corrosion resistance and long-lasting performance. This versatile set includes 9 different bit sizes, ideal for Opry, D1, and U1 Pro series tools.In addition, the set features a reusable Eternal Pencil for easy marking and writing, plus TPR rubber sleeves to keep the bits secure and organized.