IRWIN Record Medium-Duty Forged G-Clamp are a drop-forged steel clamp and the slim section permits use in situations where space is limited. Particularly useful for the craftsman with smaller work, the boat builder and the handyman. Have a blue stove enamelled finish. Come in the following sizes: REC1192: 50mm. REC1193: 75mm. REC1194: 100mm. REC1196: 150mm. IRWIN Record Medium-Duty Forged G-Clamp Size: 50mm (2 in). Throat depth:20mm (3/4 in).