![45 Degree Half-Square Triangle Ruler Creative Grid 45 Degree Half-Square Triangle Ruler Creative Grid](https://cdn11.bigcommerce.com/s-38pz2mus1/images/stencil/300x300/products/12050/8270/aad657bb9d412dd3bf33954aaa27ec57e80f8fc5__80299.1687017143.jpg?c=1)
Bloc Loc’s Half-Square Ruler 6 1/2″ x 6 1/2″ locks onto the seam for instant ruler placement and control so that the seams end in each corner. Trims 90% faster than a flat ruler. Ruler rock is gone, too! Also trims quarter-square triangles, birds in the air, y-blocks, LeMoyne Star, double windmill, hidden squares and much, much more. HST ruler is multiple-sized and trims in 1/8″ increments