Fangrui Product Details Aluminum Alloy Material:the Vertical Drill Guide Doweling Jig Is Made Of Aluminum Alloy, Which Is Very Sturdy And Can Be Used Repeatedly Portable:the Positioning Drill Jig Is Very Portable To Meet Different Needs, Does Not Take Up Your Space, For Projects And Work Multifunctional:the Positioning Hole Punch Is Suitable For Sofas, Chairs, Wooden Cabinets, Stools, Bookshelves, Dressers, Artwork, Etc. Wide Use:the Tool Is Suitable For Diy Home Projects, Professional Carpentry, Furniture Making, Etc., It Is An Essential Tool For Carpentry Color: Black Silver Material: Aluminum Alloy Package Contents: 1 X Main Body Drill Guide 3 X Drill Bushing(6/8/10mm) Only 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.