More than a dozen types of bread products sold at Coles, Woolworths and many other stores, have been recalled after small metal pieces were found inside.

The 17 products include Coles' White Round Rolls six-pack, Mighty Soft Hot Dog six-pack and IGA Bakers Oven Hamburger Roll six-pack, the NSW Food Authority's recall notice says.

The affected breads were sold at Coles, Woolworths, Metcash/IGA, corner stores and various food outlets across NSW and the ACT.