Bloc_Loc Half Square Triangle Ruler 8.5"
Bloc_Loc Half Square Triangle 8.5 Inch Block Ruler
Use the Bloc_Loc 8.5 inch Half Square Triangle Ruler to perfectly square up to 8.5 inches.
To trim your half square triangle blocks or quarter square triangle blocks, place your Bloc-Loc Ruler on the HST or QST groove side down with the groove placed over the seam allowance and the logo on the ruler on the side of the HST unit without the seam allowance under it. Trim the first two sides, turn the ruler around and then trim the remaining two sides.