Omnigrid 8" Right Triangle Ruler, Quarter-Square Triangle Quilter's Ruler
Omnigrid 8" Right Triangle Ruler, Quarter-Square Triangle Quilter's Ruler
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Omnigrid 8" Right Triangle Ruler, Quarter-Square Triangle Quilter's Ruler

|5 ratings

Key item features

  • Precise Triangle Cutting: Specifically designed for cutting half-square and quarter-square triangles, with seam allowances integrated into measurements based on the finished quilt block size.
  • Versatile Cutting Tools: Compatible for use with either a rotary cutter or a straight-edge blade for efficient and clean cuts.
  • Accurate Measurement Edges: Features edge markings for precise measuring and laser-cut edges that facilitate smooth, deep cutting.
  • Enhanced Fabric Visibility: Incorporates patented double-sight lines that ensure visibility on both light and dark fabrics.
  • Durable Acrylic Construction: Constructed from heavy-duty, durable acrylic material for long-lasting use.
  • Ambidextrous Numbering System: Includes a left- and right-hand numbering and angle system for broad usability.
  • 8-inch Block Capability: This 8" quarter-square triangle ruler creates quarter-square triangles for finished quilt blocks up to 8 inches.
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Current price is $10.39
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Arrives by Wed, Jun 24
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4.8 out of 5 stars
stars5 ratings3 reviews
How item rating is calculated
  1. 5 stars80% (4)
  2. 4 stars20% (1)
  3. 3 stars0% (0)
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Showing 1-3 of 3 reviews

Apr 4, 2026
SPD1327
Item details
Size: 8" Quarter-Square Triangles
5 out of 5 stars review

Verified Purchase

Much easier cutting

A specific-shape ruler is a major convenience when you are cutting a lot of pieces for a quilt top. I have several rulers from Omnigrid and they've all been good quality. Markings are clear and the thickness is decent.

Incentivized Review
Helpful?37E0YRSAOCMT24622145
Mar 25, 2026
Maggie
Item details
Size: 8" Quarter-Square Triangles
5 out of 5 stars review

Verified Purchase

Helps keeping my cuts straight! Love the markings on it to help making my fabric more squares.

Incentivized Review
Helpful?37E0YRSAOCMT24622145
Mar 16, 2026
Mary K.
5 out of 5 stars review

Omnigrip rulers

This is a Godsend! Precision triangles with no hassle! Wonderful tool!

Review from Prym Consumer USA, Inc
Helpful?37E0YRSAOCMT24622145