The diameter of the drill socket is 6/7/8/9/10mm, and a of specifications can meet your different needsUsing anodized surface treatment, which bring high corrosion resistance and hardnessPositioning groove design, round material can also be punched, very practical and convenientWoodworking aids for positioning drilling, making the drilling visible and easy to locateProcessed from good-quality aluminum alloy materials, possess high strength, wear resistance and rust resistanceColour:BlackMaterial:aluminum alloySize:79x79x40mmPackage Contents:1 * hole punch5 * drill socket1 * hex wrenchOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.