Description The Robert Sorby Hollowmaster has been developed with the swan neck design for hollowing through limited access. This tool has all the advantages of the RS200KT Multi-Tip hollowing tool but with the swan neck for more access. The 3/4″ flat shank, which is unique to Robert Sorby gives increased stability. Comes complete with scraper cutter, round end swivel cutter and full instructions. This tool is very user friendly. Also available as a Midi version, the RS130KT is a smaller version of the RS230KT and has a 1/2″ shank with a flat underside and can reach up to 6″ inside a vessel for hollowing. Comes with 2 cutters.