Nickel, copper, zinc and brass sheet cutting prices rebounded smartly at the non-ferrous metal market here today on stockists' buying amidst renewed demand from industrial users. While, brass utensil scrap and tin prices slipped owing to sluggish demand from consuming industries. Nickel spurted by Rs 55 per kg to Rs 825 from Tuesday's closing level of Rs 770. Copper cable scrap, copper scrap heavy and copper billets shot up by Rs 7 per kg each to Rs 442, Rs 429 and Rs 470 from Rs 435, Rs 422 and Rs 463, respectively.