About BoxWrench

Combination Wrench

Open-End Wrench & Box-End Wrench

ALT TEXTAny wrench with an open end and a boxed end. Also called a Box Wrench or Spanner in Britain. Boxed end may be 6-point or 12-point. The open-end is also referred to as an open-ended spanner while the box-end is also referred to as a ring spanner.

How to use a wrench:

ALT TEXTIf the mechanic then flips over the same end of the wrench 180 degrees, the angle of the wrench will be slightly different allowing the open end of the wrench to slip onto the fastener and continue motion of the wrench. Each time the wrench handle contacts interference in a limited space, flipping the open end of the wrench over will allow for continued fastener movement without having to remove the wrench to use a different angled wrench or other type of tool. The box end or closed end of a combo wrench has many styles as well but there are two main types with referal to the number of teeth or flat edges inside the boxed or ring end of the wrench. The most common type of box wrench is the 12 point box end. the reson for 12 points inside the boxed end of the wrench is to allow the mechanic to apply the wrench to a six-sided bolt or nut in more angles than would be allowd by only a six-point wrench. with a 12 point end of a box wrench, the tool only needs to lift off the fastener and rotate 30 degrees before it can slip down on the fastener again. With a 6 point box end wrench, the wrench handle will have to be lifted off and rotated 60 degrees to be able to slip back in place on any six-sided fastener. The added degrees of sweep make a 6-point box wrench less desirable for use in confined spaces. However, use of a 12-point wrench on corroded or slightly stripped nuts or bolts may cause the six sides of the fastener to strip. One great advantage of the 6-point box end wrench is it's uniform contact surface to all six-sided fasteners.
Combination Wrench as seen in Basic Engine Building:

ALT TEXTIf you need to apply a lot of force to a nut or bolt to loosen or tighten a fastener, use of a six point box wrench can save you from damaging the fastener or stripping any already questionable nut or bolt. In Europe, the same style wrenches are referred to as a Spanner (open end) and the boxed end is often referred to as a ring spanner.Next to a screwdriver, the most basic tool kit every mechanic should own. The name "box wrench" refers to the rounded box end or ring spanner. The rounded end is either 6 point or 12 points of contact for contacting the surface of the nut or bolt. Individually or in a kit they come in standard and metric sizes. The name "box wrench" refers to the rounded box end or ring spanner. The rounded end is either 6 point or 12 points of contact for contacting the surface of the nut or bolt. The Box End Wrench with a combo Open End is our favorite wrench in the toolset as should be obvious if you look closely at our logo. Every mechanic since the invention of the Combination Wrench has relied heavily on the versatility of the design and function of the combination wrench. Arguably, the most preferred wrench is the 12 Box End of the wrench that will allow the user to tighten or loosen fasteners in tight areas with a minimal swing of the wrench handle. The 12 point end only has to sweep 30 degrees at a time to be a point where it can be lifted off the fastener, the handle reset for the next rotation and then placed back on the fastener for another 30 degree sweep.
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