Irwin 226304ZR Workshop Vise, 4-1/4 in Jaw Opening, 4 in W Jaw, 2.2 in D Throat, Steel

Made of forged iron. Can hold up to 3000 lb of clamping pressure. Provides top clamping pressures for heavy-duty jobs. Clamping capacity of 4-1/4 in and throat depth of 2-1/2 in.