Head finish: Zinc alloy plating (gray), Handle specification: Comfort Grip surface: Flat, Nut opening range (inch): 2, Nut opening range (mm): 52, Number of adjustment steps: 19 Dimension B1 (mm): 8.0, Dimension B2 (mm): 8.0, Dimension B3 (mm): 14.0 Total length (mm): 250, mass (g): 468 The smooth jaws allow for gentle installation of textured fixtures. Adjustable screw tool.