Features Enhanced Efficiency: The double pinion drive system ensures smooth operation, significantly improving your work efficiency for various projects Durable Construction: Crafted from high-quality steel using advanced techniques, this manual drill offers a long service life for reliable performance Adjustable Chuck: The versatile chuck allows you to easily install drills of varying sizes, accommodating diverse applications with ease Precision Tooling: Ideal for correcting tight parts such as gears and shaft sleeves, this mini hand drill provides accurate removal and deformation adjustments Versatile Applications: Perfect for woodworking, this tool effortlessly works with materials like plastic, soft metal, PVC, and more for all your crafting needs Features: 1、Made of high speed steel material, the sharpn and wear resistance greatly increase drilling efficiency 2、The blade is of sharpn and the drilling speed is fast 3、Strong drill wear resistance, drilling ability, suitable for industrial and household 4、Suitable for stainl steel, iron, copper, aluminum, wood, acrylic sheets, etc. 5、Can be used with ordinary pistol drills and electric drills Specification: Item Type: Drill Bits Material: High Speed Steel Quantity: 5pcs in a box Diameter(optional): 9.0mm, 9.5mm Standard: 9.0mm 5pcs per box /4341 (1 box) 9.5mm 5pcs per box /4341 (1 box) Package List: 1 Box of High Speed Steel Drill Bits Package List 1 Box of High Speed Steel Drill Bits