8" Industrial Phosphate Finish Adjustable Wrenches T&E Tools 10008 Item No. Length Max. Opening Opening (mm) Weight 10008 8" (200mm) 15/16" 24mm 255g Features Precision Scale Opening With Metric Graduations New phosphate finish improves the rust resistance over black oxide finishes, resulting in a hard and good abrasion finished surface. Includes: drop forged, heavy-duty rack and worm adjustment, 22.5 degree angle head. Material Aisi-6140 Alloy steel. Hardness 50 HRC US. Federal Specification: GGG-W-631B, ANSI, DIN 3117(GS Approved No. 77/94).