Features:* 20pcs drill bit set great for precision crafts, jewelry, watch repair, model making, hobbies, electronics, etc.* Drawers transparent plastic boxes, elegant, easy access.* Suitable for wood drilling, electronics repair, home repair, wood drilling, plastic, circuit boards.* Great for all kinds of jewelry and watches, and also ideal for repair work.* Specially designed box holds bits securely in place and dispenses the drill bit at a time.* Includes sizes: 0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm, 0.55mm, 0.6mm, 0.65mm, 0.7mm, 0.75mm, 0.8mm, 0.85mm, 0.9mm, 0.95mm, 1.0mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm. Specifications:Product Name: Drill Bit SetMaterial: HSSColor: Black, SilverHand Drill Size: (Approx.) 112mm/4.4 InchChuck Clamping Range: 0.3-1.1mm, 1.2-2.0mmDrill Bit Size: 0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm, 0.55mm, 0.6mm, 0.65mm, 0.7mm, 0.75mm, 0.8mm, 0.85mm, 0.9mm, 0.95mm, 1.0mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mmSuitable for: Wood Drilling, Electronics Repair, Home RepairQuantity: 22pcs/setPackage Contents:1 x Hand Drill (1 Chuck Included)1 x Handle20 x Drill BitsNote:1. Transition: 1cm=10mm=0.39 inch.2. The actual colors of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.3. Please allow slight manual measurement deviation for the data.