Features: 1. Product material: high quality cast steel, hardened by heat treatment (hrc45-52) 2. Product features: hardened and thickened, no slip and no tooth collapse, strong and durable Specification: Type:UM Material:Alloy Steel Wrench Shape:ER11/ER16/ER20/ER25/ER32 Color:Red&Black Package Including: 1pc ER Spanner.
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