Specification Brand : Garosa BulletPoint1 : WEAR RESISTANCE: These PCB drill bits are made of high-quality carbide with high hardness, wear resistance, and are not easily bent and broken. BulletPoint2 : PCB drill bit has compact size and stored in a box for easy carry and it can be applied to PCB, SMT, mould, hardware processing, electronic industry, etc. BulletPoint3 : Strictly symmetrical cutting can ensure high efficient working and avoid the deviation in drilling. BulletPoint4 : We strive to provide you with high quality and convenient service. You are welcome to us if you have any problem about our product, we will give you a satisfactory reply. BulletPoint5 : FEATURES: The small chips generated when drilling with this engraving drill can be easily and smoothly removed. FinishType : Finished ItemName : Garosa 50pcs Carbide Micro Drill Bits Kit PCB Board Drill Bits for PCB Print Circuit Board Carving Jewelry Engraving CNC Machine 0.5-0.9mm Multiple ItemPackageDimensions_Height : 13 centimeters ItemPackageDimensions_Length : 5.6 centimeters ItemPackageDimensions_Width : 11.5 centimeters ItemTypeKeyword : circuit-board-drill-bits Manufacturer : Garosa Material : Carbide ModelNumber : Garosabg7n38qvxt NumberOfFlutes : 3 NumberOfItems : 1 NumberOfPieces : 50 PartNumber : Garosabg7n38qvxt ProductDescription : Specification: Material:Carbide Size: 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm Weight: 160 g / 5.6 oz(approx.) Package list: 1 * white plastic box 10 * 0.5 PCB drill bit 10 * 0.6 PCB drill bit 10 * 0.7 PCB drill bit 10 * 0.8 PCB drill bit 10 * 0.9 PCB drill bit