Steel Edge Professional T-Squares Alumicolor

Unlike a standard T-square, the Professional T-Square's 2" aluminum blades have channeled backs which glide easily on drafting tables. The inch and centimeter calibrations are anodized for a smooth, tick-free finish that will not wear. Each includes a stainless steel cutting/inking edge embedded in a tempered aluminum blade for heavy-duty use. The black ABS plastic head is light-weight and virtually unbreakable, and is secured with five screws instead of rivets.