CK Boring Shank Reducer Extension CK5-4-42CK Boring Shank Reducer Extension CK5-4-42SKU: CK5-4-42$150.00PriceOut of StockCK TypeCK5-4-42mmDimension D1 (Big Side ID)22Dimension D2 (Big Side OD)39Dimension d1 (Small Side OD)28Dimension d2 (Flange OD)50Dimension L (Total Length)42