Specification Brand : YedaHcy BulletPoint1 : Carbide Material: Made of Excellent Quality- carbide with exceptional hardness and , our micro drill bits are not to bend or break, ensuring -lasting durability and performance. BulletPoint2 : Efficient Cutting : strictly symmetrical cutting guarantees efficient drilling and prevents deviation, while sharper reduces cutting force and enhances drilling quality. BulletPoint3 : smoothness Chip Removal: These drill bits offer small chip removal , allowing for smoothness chip removal and drilling, which saves time and effort during carving process. BulletPoint4 : Versatile Application: Ideal for PCB, SMT, mould, hardware processing, and other applications in electronic industry, this set meets a wide range of drilling needs. BulletPoint5 : Complete Set with Compact Storage: package includes 50 work (of art) of drill bits in various sizes (0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm), all neatly stored in a white plastic box for carry and organization. CuttingAngleString : 9E+1 degrees FinishType : Metallic IncludedComponents : Pipe threader tool ItemName : 50pcs 0.5 0.9mm Carbide Micro Drill Bits Set for PCB Print Circuit Board Carving, Hardness and, Symmetrical Cutting, Smoothness Chip Removal ItemPackageDimensions_Height : 6 centimeters ItemPackageDimensions_Length : 13 centimeters ItemPackageDimensions_Width : 13 centimeters ItemTypeKeyword : circuit-board-drill-bits Manufacturer : YedaHcy Material : Alloy Steel ModelNumber : YedaHcyozx4mfk2di NumberOfFlutes : 3 NumberOfItems : 1 NumberOfPieces : 3 PartNumber : YedaHcyozx4mfk2di ProductDescription : Features: Made of premium Carbide with high hardness, wear -,not easy to bend and break. Small chip removal , smooth to remove chips and drill holes. Sharper cutting can reduce cutting force and improve drilling quality. Strictly symmetrical cutting can ensure high efficient working and avoid the deviation in drilling. Can be applied to PCB, SMT, mould, hardware processing, electronic industry, etc. Multiple sizes included in one set to meet different needs. Compact size and stored in a box for easy carry.