CK Boring Shank Reducer Extension CK5-3-47CK Boring Shank Reducer Extension CK5-3-47SKU: CK5-3-47$150.00PriceOut of StockCK TypeCK5-3-47mmDimension D1 (Big Side ID)18Dimension D2 (Big Side OD)31Dimension d1 (Small Side OD)28Dimension d2 (Flange OD)50Dimension L (Total Length)47