Combination Open En & 12 Point Box End Wrench Set Included Organizer Keeps Wrenches Organized & Protected Features Professional Metric & SAE Combination Wrenches These combination wrenches are precisely machined for a perfect fit on all fasteners giving you maximum torque without slippage, and features a 12-point box end for easy fastener engagement. They exceed ASME B107.100-2002 specifications by 30% so you can be confident that you will have the quality and precision you need when working on any project. Get Frustration-Free Work Our combination wrenches save the frustration of rounding off your fasteners or slipping while you work, saving your time and helping you work more efficiently. You get more value for your money when you buy Olsa Tools' professional-grade wrench set; they are built to withstand heavy-duty usage for a lifetime and come with an included foam organizer to keep them protected and organized.  Lifelong Reliability Engineered with hardened Shiny Chrome Vanadium (Cr-V) Steel, anti-slip open end for extra gripping power. Stay confident that these SAE & Metric combination wrench sets will last a lifetime. This is a toolset that can be passed down through generations. Satisfaction Guarantee Here at Olsa Tools, we believe in providing you real value. That means we will never over-charge you for our professional, tool-truck quality tools. Almost every tool you buy comes straight out of the same factories as the biggest tool truck brands in the world. All of our wrenches at Olsa Tools are backed by a Limited Lifetime Warranty, 90-Day Risk-Free Return Policy, and 100% Satisfaction Guarantee. Metric Sizes 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, and 22 mm metric wrenches with no skipped or missing sizes for your convenience. SAE Sizes¬† 1/4, 9/32, 5/16, 11/32, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 1". Video Review by Mechanic Link Package Contents Package Contents 15pc Combination Wrench set Metric Size:8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22 15pc Combination Wrench set SAE Size: 1/4, 9/32, 5/16, 11/32, 3/8, 7/16, 1/2, 9/16 , 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 1" Eva foam with marked labels for easy storage Specifications Product Specifications Prevents fastener round-off: 15-degree angle offset Wrench material: 6140 Chrome Vanadium steel construction Open end function: Grooves to prevent stripping of bolts and nuts Point box: 12-point box end for easy fastener engagement ASME Specification: B107.100-2002 Foam Tray Size: Metric 14.96" x 2.16" x 10.23" Foam Tray Size: SAE 16.14" x 2.36" x 10.62"