About this item

• What You Get: This kit includes 6 drill bit adapter (3 x 45 mm, 2 x 25 mm, and 1 x 35 mm). Our 1/4 to 4 mm bit adapter set is sufficient quantity and variety to meet your different needs
• High Quality: Made of premium high-hardness steel, these 4 mm bit set offer superior durability and strength. The bit adapter's natural surface treatment is wear-resistant, making it an ideal choice for professionals who pursue reliable performance
• Universal Compatibility: Our 1/4 bit holder are perfectly compatible with both 1/4' (6.35 mm) and 4 mm bit systems. The hex socket design of micro drill bit ensures compatibility with most standard tools and accessories
• Carefully Designed: Carefully designed hex bit holder reduce drill bit shake and improve control, helping you get cleaner results with less effort. Different lengths (25 mm - 45 mm) 4 mm hex bit can accommodate a variety of working depths and applications
• Wide Application: Our drill bit adapter are sufficient in quantity, superior in quality and in a variety of sizes. The hex to 1/4 drive adapter are perfect for professionals and beginners, and easy to use