Features Versatile Drilling Capability: Ideal for aluminum, wood, and iron, this set excels in creating precise positioning holes in various materials Enhanced Durability: Each bit features high-speed steel construction, providing superior hardness and wear resistance for extended tool life Precision Engineering: The sharp design of these twist drill bits ensures effortless drilling, saving you time and energy on every project Wide Compatibility: Perfectly suited for manual and electric hand-held drilling tools, milling machines, and lathes for diverse applications Comprehensive Set: This 13-piece twist drill bits set offers a range of sizes from 1.5mm to 6.5mm, catering to all your drilling needs Features: 1、Suitable for aluminum, wood, malleable and deep hole drilling positioning holes iron. 2、Through heat treatment, stainl steel, tool steel, and other workpiece that are difficult to proc, can be proced by these twisted drill bits. 3、High speed steel to obtain high hardn, high wear resistance and high toughn. 4、Can be used in manual, electric hand-held drilling tools, milling machines, lathes and more. 5、Sharp twisted drill bits will make the drilling easier and more effortl. Specification: Description: A twist drill is a tool that cuts a round hole of a workpiece by rotary. It is named after its flute shaped like a spiral. Twist drills can be used in manual, electric hand-held drilling tools, milling machines, lathes and even machining centers. The bit material is generally a high speed tool steel or a hard alloy. Features: 1. Suitable for aluminum, wood, malleable and deep hole drilling positioning holes iron. 2. Through heat treatment, stainl steel, tool steel, and other workpiece that are difficult to proc, can be proced by these twisted drill bits. 3. High speed steel to obtain high hardn, high wear resistance and high toughn. 4. Can be used in manual, electric hand-held drilling tools, milling machines, lathes and more. 5. Sharp twisted drill bits will make the drilling easier and more effortl. Specification: Material: High speed steel Treatment: Titanium plating Handle: Hexagonal handle Quantity: 13pcs Diameter: 1.5mm, 2mm, 2.5mm, m, 3.2mm, 3.5mm, 4mm, 4.5mm, 4.8mm, 5mm, 5.5mm, 6mm, 6.5mm Weight: Approx. 167g Package Includes: 13 x Twist Drill Bits Package List