This 4-piece combination square (a stainless steel adjustable carpentry measuring device) is one of the most important and essential tools in every serious woodworker, machinist, or do-it-yourselfer’s arsenal - to ensure that you have extremely precise results. Each piece of this combination square has the ability to give you more options than would be possible by using either a simple ruler or a single fixed square.
Each of the pieces of this combination square is made of high quality stainless steel and therefore they will withstand corrosion and wear-and-tear over the years of use. The deep graduations etched on each of the rules will remain readable and accurate. This tool measures 12 inches long and is big enough to cover all the common framing and cabinetry needs and small enough to allow for the needed detail work in furniture making and woodworking. Due to the fact that the stainless steel rule has been hardened, it will retain its straightness even after being dropped or bumped many times in a busy shop.
The primary item included with this combination square set is the square head. The square head gives you instant access to laying out both 90-degree and 45-degree angles. To create a reliable depth gauge, a marking gauge, or a height gauge for determining how much to expose the cutting edges of router bits or table saw blades, simply move the head along the stainless steel rule and lock it into position with the integral brass or steel thumb nut. Some combinations squares also come with a built-in spirit level. Using the spirit level of the ensures that the assemblies are properly aligned horizontally and vertically.
Additionally, some of the combinations squares have a removable hardened steel scribe at the bottom of the head. This allows you to make very fine and thin lines on metal or wooden surfaces where a pencil may be too large and/or inaccurate.
In addition to the standard square head, this four-piece combination square comes with two other items: a centerfinder and a protractor head. These three pieces combine to greatly expand upon what you can accomplish with these types of tools. The centerfinder is specifically designed to find the dead center of cylindrical or square stock. Locating a workpiece’s center point is typically difficult to accomplish accurately without the proper equipment. By placing the “V” shaped head of this tool onto the edge of a workpiece and drawing intersecting lines around the V-shaped head, you can determine exactly where the center of your workpiece is located so that you can drill there or turn there on a lathe. This makes it especially popular among those involved in spindle turning or fabricating pipes because it removes the need for guessing and complicated math formulas to find a workpiece’s center point manually.
Perhaps the most sophisticated part of this combination square set is the protractor head. The protractor head allows you to the measure and transfer any angle up to 180 degrees. This is the especially useful for those working with unusual angles in the complex carpentry jobs like vaulted ceilings and customized moldings or specialized joinery. The protractor head easily and securely locks into place as you rotate it to enable consistent replication of angles across multiple work pieces. In conjunction with the stainless steel rule and the protractor head converts this combination square into a complete layout station capable of handling everything from basic squaring operations to advanced trigonometric based designs.
Overall, this 12 inch stainless steel combination square is all about marrying durability and multi-functionality. It does away with needing six separate tools and reduces downtime caused by searching for various measuring tools. Additionally, since each of the pieces in this combination square set are adjustable, it will grow with your project - starting with preparing your stock to performing assembly checks at completion. A craftsman appreciates the physical feel of a good quality stainless steel square that instills confidence that his measurements are correct - resulting in perfectly fitting joints and lasting projects. Regardless if it is to check that a cabinet box is square or to mark a complex miter cut, this four-piece combination square set is still unmatched for accuracy in your hand.
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