pinking shears

Pinking shears are a specialized cutting tool with blades that form a sawtooth or zigzag pattern rather than a straight edge. When the blades close, they create a series of small V-shaped cuts across the fabric surface. This distinctive cutting action produces a notched border instead of a plain one, and the effect is immediate and visible on any woven or knit material.

The zigzag edge serves a genuine functional purpose in textile work. When fabric is cut with straight scissors, the severed fibers at the edge remain loose and prone to unraveling, especially under tension or after washing. The zigzag cut breaks up these fiber chains more frequently; the short segments between notches cannot travel as far along the edge before they meet another cut. This slows fraying dramatically, though it does not eliminate it entirely. The effect is most pronounced on closely woven fabrics and less effective on loose weaves or knits.

The tool is standard in apparel production, particularly in cutting seam allowances on garment pieces before assembly. A seam allowance edge finished with pinking shears requires no additional binding or serging in many applications, saving time and material. Pinking shears are also used decoratively on ribbon, trim, and quilt squares, where the zigzag edge becomes part of the finished appearance. The blade angle and tooth size vary between different models, with steeper angles and finer teeth producing different fraying characteristics.

Pinking shears are not a substitute for proper edge finishing on garments that will endure heavy wear or repeated laundering. A pinked seam allowance on an underarm seam or pocket edge may still fray significantly over time, particularly in knit fabrics. For durable garments, pinking is often combined with other methods, such as serging or binding, depending on the fiber content and intended use of the garment.

The name comes directly from the verb form of the word pink, which in textile terminology means to cut notches or scallops into an edge. The term predates the zigzag blade design; earlier methods used hand-operated notching tools. Modern pinking shears with their distinctive interlocking blade geometry became the dominant tool in the mid-twentieth century and remain largely unchanged in basic design.