For sale is a WIDE NMTB 40 TAPER INDEXABLE SHELL MILL HOLDER,VALENITE B-4-8R-15deg-P. Please note that while it will fit the inside taper of a NMTB 40 spindle, the collar is wider than normal for NMTB 40. I want to be clear about it. Very nice Valenite shell mill mounted, takes regular square inserts 300 type. Some inserts are missing, but all mounting hardware seems to be there. I combine shipping on those.