Item Name: Clamp Wood Horn Walnut Manual Hand Drill Drilling Aluminum Mini Twsit Chuck. Specific dimensions: As the picture shownMaterial: Aluminum Clamping range: 0.3-2.5mmPerfect for Jin Gang, wood,horn, amber, olive, walnut, plastic and other materials drilling.Adjustable switch.Portable mini hand drill multi-tool chuck.Package Includes: One Manual Hand Drill *