The Bahco 3834-ARBR-930EL Quick-Eject Arbor is suitable for holesaws between 19-30mm.Bahco Quick-Eject Arbors come with a carbide tipped drill. They release the core from the holesaw in one simple, fast and smart operation without burning your fingers on a hot saw or release adaptor. The arbors provide a stable drilling performance. Suitable for Multi-Construction Holesaws.