Adaptor hub assembly for wire brush wheel, Material- Diecast Aluminum Dimensions : 11mm (Outer-65mm, Inner-48mm, Width-15mm), Dimensions : 23mm (Outer-65mm, Inner-48mm, Width- 30mm), Dimensions : 43mm (Outer-65mm, Inner-48mm, Width-47mm) Fits tools like: -Dynabrade, -DentFix, -SnapOn, -Mac Tools, -Sunex, -Rustibus -Sunmatch Buyer is responsible for safe use and confirming compatibility of this product to the tool used.