KKR secured the cheapest borrowing rates it ever got to fund an LBO, which could cut hundreds of millions of dollars from interest it will pay to finance its $3.9B takeover of Gardner Denver (NYSE:GDI), banking sources say. With markets no longer worried the Fed will end stimulus too soon, the PE firm is said to have borrowed $2.425B in loans and $575M in bonds for the deal at an average blended interest rate of 4.8%.