He’s still keen on all things knives - Food & dining

SUDBURY — See if you can pick out the common thread in Will Mack’s life: For a couple of decades, he operated Kitchen Arts on Newbury Street, which devoted 41 feet of wall space in its small footprint to knives, was often cited by Best of Boston for them, and sold so many that Wusthof, one of his suppliers, “asked if we were giving them away.”