Features: Discover precisions and durability with our 99Pcs Twist Drill Bit Set, designs to meet your various drilling needs with size ranging from 1.5mm to 10mm, perfect for intricate tasks. Craft from steel and plated, these drill bit offer exceptionally strength and wear resistance, ensuring smooth drilling. Ideal for woodworking professional, metalworking experts, craft enthusiasts, and home repair individuals who demand precisions and reliability in their tools. With good toughness, wear-resistance, this drill bit set apply for wood, plastic, soft metal, steel, aluminum alloys and other soft metals.. With comprehensive ranges of size and convenient storage case, this set is a essential addition to any toolkit, providing versatilities and ease of use for both hobbyists and professional alike. Specifications: Component: Steel Color: As pictures shown. Optional Pacakge Types: A Storage Box, B In Bags Specification: As pictures shown. Storage Box Size:Approx. 196x210x35nn/7.72x8.27x1.38in Quantity: 1 set Package Includes: 1 set Twist Drill Bit note: 1: Please allow 1-2cm errors due to manual measurement, ensures that you not mind before you order. 2: Due to the differences between different monitors, the picture may not reflect the item actual color.