Features: 1. Excellent material: quality alloy material durable and non-magnetic excellent concentricity. 2. Fine workmanship: high hardness convenient and durable quality choice. 3. Hexagonal shank design: stable clamping and more time-saving. 4. Wide range of applications: These drill bit sets are suitable for drilling holes in low-hardness wood aluminum iron plastic and other materials. The thickness of the drilled material is within 5 mm which can save a lot of energy. 5. Easy to use: the principle of drilling edge can be used to quickly replace the composite cone; drilling and tapping can help save processing steps and time and can also make your work more efficient. Notice: *Actual color may be slightly different from the image due to different light effect *Please allow 1-3cm deviation due to manual measurement Description: Material: Alloy Specification: 6/8/10/12mm includes: 1 x Drill Bits "