MAX JAW CAPACITY: 20mm for 150mm (6-Inch) adjustable spanner. 25mm for 200mm (8-Inch) adjustable spanner. 30mm for 250mm(10-Inch) adjustable spanner. LOAD STRENGTHENING DESIGN: The torque range of this shifting wrench set (150mm plumbing spanner is 191NM. 200mm is 356NM. 250mm is 594NM) IMPROVES WORK EFFICIENCY: 15-degree angle head and thinner jaws of this slim shifting spanner set give a greater access in tight spaces. Black Phosphate finish resists corrosion COMFORTABLE TO USE: The handle without rubber prevents sweating and oil stains when using, which is suitable for long-term use. And it may hang on the tool rack to store with the tail ring. APPLICATION: These small metric wrenches can be used on all types of bolts, nuts or pipe and good at gripping, holding, twisting for plumbers,construction workers, mechanics and DIY. DUAL-SIDES SCALE: Dual measurement scales (Metric on front. Inch on reverse. are easy to read and handy for sizing nuts, pipes and tube diameters., Weight: 1.8298367746 Pounds, Manufacturer: MAXPOWER