body made of durable steel; jaws made of chrome-vanadium alloy steel, forged, hardened and ground; long handle for easy undoing; maximum pipe diameter for wrench: 250 / 10” – 50 mm (HT1P531) 300 / 12” – 70 mm (HT1P533) 350 / 14” – 80 mm (HT1P535) 450 / 18” – 90 mm (HT1P537) 600 / 24” – 100 mm (HT1P539).
