The STANLEY 87-624-23 is designed for demanding plumbing and maintenance work. Key features include: Robust Build: Constructed with a heavy-duty cast-iron housing that withstands high torque and rugged use. High-Grade Jaw: The hook jaw is forged from chrome-molybdenum steel, ensuring long-lasting strength and superior grip, even under stress. Easy Adjustments: Equipped with a knurled large carbon-steel adjustment nut for quick and precise jaw adjustments. Jaw Capacity: Opens up to approximately 46 mm, making it versatile for a wide range of pipe diameters. Specification Brand : STANLEY Model : 87-624-23 Length : 14 inches / 350 mm Housing Material : Heavy-duty Cast Iron Jaw Material : Drop-forged Chrome-Molybdenum Steel Handle Design : I-Beam style for high torque tolerance Jaw Action : Floating hook jaw with ratcheting functionality Adjustment Nut : Knurled large carbon-steel for easy adjustment Max Jaw Opening : Approximately 46 mm Ideal Applications : Heavy-duty plumbing, maintenance, and industrial pipework