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, perfect for projects and on the go 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.