Specification Brand : Fafeicy BulletPoint1 : Easy to Use: : Effortlessly change out the bits and achieve cuts for solder holes in pcb boards. BulletPoint2 : Enhanced Performance: : Reduce cutting force and prevent broken drills, leading to improved hole wall quality. BulletPoint3 : Materials: : The drill bits are made of materials and undergo a fine grinding process for a cutting . BulletPoint4 : Convenient Storage: : The drill bits come in a great storage container that allows for easy organization and quick access to the right bit when needed. BulletPoint5 : Smooth : With a large scraps discharge space, these drill bits offer little and ensure a smooth during scraps discharge. ItemName : 10pcs PCB Print Circuit Board Carbide Micro Drill Bits, Cutting, Little Resistance, Great for Solder Holes, with Storage Container for PCB, CNC (0.7mm) ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 8 centimeters ItemPackageDimensions_Width : 5 centimeters ItemTypeKeyword : circuit-board-drill-bits Manufacturer : Fafeicy ModelName : Fafeicyik7f9nhyu5-06 ModelNumber : Fafeicyik7f9nhyu5-06 NumberOfItems : 1 PartNumber : Fafeicyik7f9nhyu5-06 ProductDescription : Specifications: Material: Tungsten Steel, White Steel Ring Color: Random Shank Diameter: Approx 3.175mm Length: 38.1mm / 1.5 Box Size: 8.7 x 5.3cm / 3.42 x 2.08 Quantity: 10pcs per set Weight: 38g(approx.) Package Includes: 1 Set(10pcs) x Drill Bits Note: Due to different batches, color of rings might be different from the ones in picture. Please take the real one as standard. Thanks for your understanding.