Draper 1x 1/2"" Square Drive or 24mm 130mm Capacity Chain Oil Filter Wrench Tool. This heavy-duty chain wrench features a tightening nut that can be operated with a 1/2"" square drive or a 24mm wrench. It is designed for the removal of oil filters up to 130mm in diameter. The product is display packed. Draper offers a lifetime guarantee on this tool with online registration and receipt. VAT receipt will be provided by e-mail with all purchases.