Chalk Line Reel Set

A 2pcs Chalk Line Reel Set typically refers to a package or kit that includes two chalk line reels. A chalk line reel is a tool used in construction and carpentry for marking straight and level lines on surfaces such as walls, floors, and ceilings. The set usually includes two individual chalk line reels, each consisting of a housing containing a length of string or cord coated with chalk powder. The process involves stretching the string between two points, snapping it against the surface to leave a straight chalk line, which serves as a guide for various construction or layout tasks. Having two chalk line reels in a set can be convenient for projects that require multiple reference lines or for situations where two people are working simultaneously. This set often includes chalk powder or chalk cartridges that can be loaded into the reels for marking the lines.

Combination Square

A combination square is a versatile measuring tool used in woodworking, metalworking, and other precision tasks. It typically consists of a ruler with a sliding adjustable square head that can be locked at different angles along the length of the ruler. The square head can be used as a 90-degree square for checking or marking right angles, or it can be positioned at other angles to measure and mark various angles accurately. The ruler often has markings in both imperial and metric units, providing flexibility for different measurement systems. Additionally, combination squares may have a level bubble for ensuring horizontal or vertical alignment.

Combination Try Square

A Combination Try Square is a versatile measuring tool used in woodworking and metalworking to ensure the accuracy of right angles and measure or check the squareness of edges and surfaces. It typically consists of a ruler or blade attached to a handle at a 90-degree angle, allowing for both linear measurements and the verification of perpendicular angles. The "combination" aspect often refers to additional features, such as a spirit level or an adjustable head, which enhances its functionality for various precision tasks.  

Protractor

A protractor is a measuring instrument used in geometry and mathematics to quantify angles. It typically consists of a flat, semicircular or circular tool made of transparent or opaque material, marked with degree measurements from 0 to 180 or 0 to 360. The center of the protractor usually has a pivot point, allowing it to be placed at the vertex of an angle for accurate measurement. Users align the protractor's baseline with one side of the angle and read the degree value where the other side intersects the protractor scale to determine the angle's measurement. Protractors come in various designs, including simple plastic versions for basic measurements and more advanced models with additional features for specific applications. 

Rafter Square

A rafter square, also known as a framing or carpenter's square, is a versatile tool used in carpentry and woodworking. It typically consists of a flat, L-shaped piece of metal, wood, or plastic. One arm, called the tongue, is longer than the other, called the body. The intersection of the tongue and body forms a 90-degree angle, and the square is marked with various scales and measurements. Carpenters and builders use the rafter square to measure and mark angles, make straight cuts, check for squareness, and assist in various framing and layout tasks. The tool is particularly useful in roof framing for laying out and cutting rafters, which are the sloping beams that support a pitched roof. The rafter square helps ensure precision and accuracy in construction projects.