General description The STARRETT ARBOR EXTENSION is a 300mm (12") extension designed for use with various Starrett arbors, enhancing your cutting capabilities. Technical specifications Length: 300mm (12") Compatibility and accessories Fits A1 Starrett arbor Compatible with A2, A17-12, and A2 arbors when using the A5 extension Compatible with A1, A10, and A17-38 arbors when using the A15 extension