Features:* HSS Tapered Drill Bit with Hex Shank * 3 Sizes for Choice: 4-12mm 4-20mm 4-32mm * Made of HSS steel and coated with titanium to reduce friction and heat * and practical * Suitable for cutting holes in a variety of materials including steel, brass, wood, plastic, etc.* Specifications:* Material: HSS * Color: Gold (as pictures show) * Quantity: 1pc * Hex Handle: 6.35mm * Optional Sizes: 4-12mm, 4-20mm, 4-32mm * Length:4-12mm Length: 6.8cm/ 2.68" (Approx.) 4-20mm Length: 7.3cm/ 2.87" (Approx.) 4-32mm Length: 10.3cm/ 4.06" (Approx.) * Step:4-12mm: 4mm, 6mm, 8mm, 10mm, 12mm4-20mm: 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm4-32mm: 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, 32mmPackage Contents:1*Drill Step Note: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.