PURPOSE: To obtain an Ni-base alloy for cutting tools excellent in corrosion resistance and workability and having high hardness by adding specific amounts of Cr and Al to Ni.

CONSTITUTION: Cr (25W50% by weight, preferably 30W45%) and 1.5W9%, preferably 2.5W6.0%, Al are added to Ni to undergo alloying. This Ni-base alloy is heated, e.g., at about 120°C for 1W3hr and water-cooled to undergo solution part treatment. Subsequently, the above alloy is worked into the desired cutting- tool shape by means of a pressing machine, a cutting machine, etc. By this method, a cutting-tool stock excellent in workability and hardness which are essentially conflicting with each other and also in corrosion resistance can be obtained.