... ,carbon steel 2. Jumbo combination spanner, drop forged 3.Jumbo combinatoin spanner,raised penal Jumbo combination Spanner(raised penal)Raw Material: 45# quality carbon ... plated.Ni-Ni-Cr Style: raised panel Packaging: cartonscombination spanner set:4x(2-1/8" to 2-1/2"), ... to 1-1/2") except of jumbo combination spanner, we also supply double open end spanner, cross rim wrench, heavy duty pipe wrench ...