Cutting tool

A cutting tool comprising:

• a substrate of cemented carbide, said cemented carbide including hard constituents in a metallic binder, the hard constituents including WC and the WC content in the cemented carbide being 80-96 wt %, and wherein the cemented carbide has a Ni content of 2.5-7 wt % and a weight ratio of Fe/Ni<1.5 and a weight ratio of Co/Ni<0.825;
• and
• a rake face, a flank face and a cutting edge there between, wherein the hardness H, is measured with Vickers indentation made with a load of 100*9.81 N, wherein the crack resistance W is defined as
• W
• =
• P
• 4
• ⁢
• a
• _
• wherein P is the load of a Vickers hardness indentation and ā is the average crack length of each crack formed at the corners of the Vickers hardness indentation, and wherein the product of the hardness at the rake face H(rake) and the crack resistance at the rake face W(rake) is H(rake)*W(rake)>3000 HV100*N/μm, wherein the W as measured on the bulk area of the cutting tool is W(bulk) and wherein W(rake)/W(bulk)>2, and wherein the cemented carbide comprises
• i) 2.5-7 wt % Ni, 0.5-3 wt % Fe, 0.1-0.5 wt % Co and balance WC;
• and optionally
• ii) one or more of Ti, Nb, Ta, Mo, Re, Ru, Cr, Zr, V, and N.