Enhance your precision drilling tasks with this high-quality 10-piece Drill Bit Set, specially designed for effortless and accurate drilling through PCB boards, metals, plastics, and more. Crafted from durable tungsten steel and white steel materials, each drill bit features a finely ground, sharp cutting edge and a twisted flute design to ensure smooth, low-resistance operation with efficient scrap discharge. Perfect for delicate applications such as model engineering, jewelry repairs, craft work, CNC machining, SMT projects, molds, sculptures, and solder hole drilling. Key Features: · Premium Materials & Precision Grinding: Manufactured from high-quality tungsten steel and white steel, these drill bits boast sharp cutting edges for clean, precise cuts and enhanced durability. · Efficient Scrap Discharge & Low Resistance: The large scrap discharge space reduces cutting resistance, promoting smooth drilling and preventing bit clogging for seamless operation. · Reduced Cutting Force & Enhanced Hole Quality: Designed to minimize cutting force and reduce the risk of broken drills, ensuring clean, high-quality hole walls. · Versatile & Easy to Use: Ideal for drilling through PCBs, plastics, copper, stainless steel, and other hard materials with effortless bit changes to accommodate various project needs. · Convenient Storage Case: Comes in a compact, durable plastic storage container with designated slots, making it easy to organize and quickly access the drill bit you need. Specifications: · Material: Tungsten Steel, White Steel · Cutting Edge Diameters: 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.7mm, 1.2mm, 1.3mm, 1.4mm (Optional) · Shank Diameter: Approximately 3.175mm · Length: 38.1mm (1.5 inches) · Storage Box Size: 8.7 x 5.3 cm (3.42 x 2.08 inches) · Quantity: 10 pieces per set · Weight: Approximately 38g Package Includes: · 1 Set (10 pieces) x Drill Bits Please note that due to manufacturing batches, ring colors on the drill bits may vary from the images shown. This drill bit set is a reliable and versatile solution for precision drilling, providing consistent performance and excellent results across a variety of materials and intricate projects.