Chrome Vanadium Steel Plus Offset Star Wrench 6x7 DIN 838 - Size: 16x17 - Made of Chrome Vanadium steel, giving it greater hardness and resistance. - Complies with DIN 838 regulations. - Double beveled ring heads for optimal adjustment of the screws. - Matte chrome finish, this finish favors grip compared to the gloss finish. - Allows working in tight spaces or with screws deep fixation. - Ideal for industrial work, plumbing, mechanical workshops, DIY, home repairs, etc. - Article known as star wrench, star wrench, combination wrench, fixed wrench, wrench double star, toothed star wrench, double depth wrench, etc.