A golf putter head for mounting on a shaft to create a golf putter club wherein the putter head includes a frame fabricated of a metal and having a toe end cap and heel end cap. The end caps are spaced apart one from the other by at least one rib integral with the toe and heel end caps. The rib and end caps partially defining at least one central body void. An elongated central filler segment fills the central body void and a has a top surface a bottom surface. The central filler segment in combination with the frame defines at least one generally vertically oriented planar ball contacting surface. The central filler segment is fabricated of polymer based material and the frame generates a moment of inertia significantly greater than a body excluding the end caps.