100% brand new and high quality Material: HSS4241 Color: as shown in pic Features: Micro HSS Twist Drilling Bit Straight Shank Electrical Drill Tool. Twist Drill Metric Hss Drills Micro Drill Bits. Mini Micro HSS Twist Drill Bit Set 0.5mm-3mm Model Craft Straight Shank Twist Drill Bit. Infinitely adjustable - secure closure every time. Suit for:PCB, Thin Aluminum/Iron Sheet, Thin plank, PlasticSuitable for a small object processing Specifications: Shank: Straight shank. Size: 0.30mm,0.40mm,0.50mm,0.60mm,0.70mm,0.80mm,0.90mm,1.0mm, 1.1mm,1.2mm,1.3mm,1.4mm,1.5mm,1.6mm,1.7mm,1.8mm,1.9mm,2.0mm, 2.1mm,2.2mm,2.3mm,2.4mm,2.5mm,2.6mm,2.7mm,2.8mm,2.9mm,3.0mm Suitable for PCB, crafts, jewelry, watch making Ideal for precision craft and hobby work, recommended with drilll press Quantity: 28Pcs/set Note: Please allow 1-2mm errors due to manual measurement Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!