Bloc Loc - 9.5" Half Square Triangle Square Up Ruler
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Bloc Loc 9.5" Half Square Triangle Square Up Ruler
- The easiest way to square up your half square triangles!
- Saves you an incredible amount of time making HSTs!
- Makes perfect square cuts, the channel locks onto the seam and slides.
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The bloc loc works great. Will most likely purchase a smaller size as well.

I love the other bloc loc rulers I have and now this completes my set.

I love the Bloc Loc products. Right now I am working with the kite ruler I purchased from you and it is wonderful. The blocks proof so well. I love the half square ruler as it allows me to make many different sizes with one ruler. I am gradually increasing the number of bloc loc rulers in my collection.

Love the Bloc Loc line for accuracy and ease of use. I had used an expensive different brand name half square triangle square up ruler and my blocks always had size discrepancies. I then tried a bloc loc ruler to compare the block, and the difference was incredible. The other ruler was off by almost 1/4”. My blocks are sized correctly and no more frustration trying to figure out what was going on. This is my second bloc loc ruler.