Baler needle clamp arrangement for facilitating side-to-side adjustment of outer needle end

A clamp arrangement for securing a needle to a needle support member includes an interface arrangement between a first clamp segment, defining an inner end of a baler needle, and a surface of a needle support member, on which a second clamp segment is located on a side of the support member opposite to that engaged by the first clamp segment. The interface arrangement is such as to permit the needle to be rocked sideways so as to adjust an outer twine delivery end of the needle from side-to-side as necessary to bring the twine delivery end in correct alignment with a knotter mechanism.