Tool of press forming

A press forming tool comprising:

• a punch;
• and
• a die,
• wherein the press forming tool is configured to press form a press forming product including a punch bottom and a shallow concave portion or a low convex portion in the punch bottom,
• the punch includes
• a punch bottom forming surface to form the punch bottom,
• a concave shape forming portion to form the concave portion or a convex shape forming portion to form the convex portion in the punch bottom forming surface, and
• a low Young's modulus member installation region formed under the punch bottom forming surface and accommodating a low Young's modulus member having a lower Young's modulus than that of the punch bottom forming surface, and
• the low Young's modulus member installation region includes an area directly under the concave shape forming portion or the convex shape forming portion of the punch and has a projected area in a press forming direction that is 110% or greater as large as a projected area of the concave shape forming portion or the convex shape forming portion.