3M snaps up Swiss tool firm

Diversified US manufacturer 3M will buy Winterthur Technologies, a Swiss maker of grinding tools, for about $448m (£284.9m) in a move that will fill out its already sizable abrasives business. The deal is the latest in a string of nearly a dozen acquisitions this year for 3M, which has spent nearly $2.5bn in just the four deals whose terms the company has disclosed. The purchases have taken 3M, which already has a broad lineup of consumer, industrial and medical products, into new businesses like biometrics and electronic people-monitoring, even as they have bolstered its presence in others, like healthcare.