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GO! Equilateral Triangle-4 1/2" Sides (4 1/4" Finished)

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Quick Overview

Equilateral triangle quilts are everywhere right now! This versatile shape showcases all your favorite fabrics in a great alternative to simple patchwork. Now's the time to add this staple to your die collection, especially since it coordinates with GO! Hexagon-4 1/2” Sides (55438) and GO! Half Hexagon-4 1/2” Sides (55437) for endless possibilities. Fits pre-cut 5" squares.

Compatible with these fabric cutters:

*Must use with GO! Die Adapter

 GO! Equilateral Triangle-4 1/2" Sides (4 1/4" Finished) (55429)

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Use GO! dies with your GO! and GO! Baby Fabric Cutters to cut precise, accurate shapes in just seconds.

Features and Benefits:

  • Cut so much more in less time—Cut up to 6 layers of 100% cotton fabric at once
  • Easiest to use—Simply place die on cutter, then fabric and cutting mat on top
  • Get accurate cuts every time—No slipping rulers or mistakes
  • Create quilts you never thought you would—AccuQuilt makes cutting curvy classic quilt patterns a snap
  • Save fabric with Two Tone Foam—Get more out of your fabric by placing it only over the shape you want to cut
  • Safe to use—No blades come anywhere near your fingers
  • No more math—Geometric shapes are designed with an accurate 1/4" seam allowance in the design
  • Quilt more, clip less—No more clipping all those dog-eared corners
  • Quick and easy applique—Apply fusible web to fabric prior to cutting

Storage: Organize GO! dies with AccuQuilt GO! Die Storage Rack (55115).

Care & Maintenance: Use adhesive roller to clean lint and thread from dies. After each use, with the die pick provided with the cutter, remove any threads imbedded between blades and foam. It's normal for threads to get caught where blades meet in a die. Remove with tweezers or die pick. Die blades never need to be sharpened.

Die Tips:

  • With some fabrics, after cutting, a thread or two will remain where die blades meet. Snip threads with scissors.
  • Use cutting mats that matches size of each die.
  • For best results, cut with die blades running under roller at an angle. Do not cut with blades parallel to roller.
  • Blades on some dies are positioned at an angle. Align fabric to edge of shape, not edge of die board.
  • Some dies feature specially designed corners to aid in alignment and pre-cutting.
  • For fast applique, apply fusible web to fabrics, then cut shapes with dies.
  • Use good quality fabric to reduce fabric stretch.
  • It's always a good idea to test cut one shape before cutting many shapes to ensure fabric orientation is correct.

Warranty: AccuQuilt GO! dies are guaranteed for one year.

Details and Dimensions
Designer AccuQuilt
Compatible Fabric Cutter GO! Baby Fabric Cutter (55600), GO Fabric Cutter (55100S), GO Big Electric Fabric Cutter (55500), Studio 2 Fabric Cutter (50450), Studio Fabric Cutter (50800)
Cutting Mat/Plastic Required GO! Cutting Mat, 6 in. x 6 in. (15.2 cm x 15.2 cm) Item 55137
Cut Size 4 1/2" Sides (11.4 cm) with dog-eared corners
Finished Size 4 1/4" Sides (10.6 cm)
Die Board Size 6 in. x 6 in. (15.2 cm x 15.2 cm)
Item 55429
Weight in lbs. 0.75
Brand AccuQuilt
Warranty Limited One Year

In stock items will ship within 1-2 business days if ordered before 12:00 p.m. CST Mon-Fri. Most in-stock items will arrive at your U.S. address 3-8 business days (Ground Shipping) after your order is shipped.


Please note that deadlines for certain items, including Deluxe Cutting Cabinets (SKU 50903), are different than those of general merchandise as those items cannot be expedited. To make sure your gift selection can arrive on time, always check the Shipping tab located at the bottom of the specific product page.

The shipping time frames above apply to in-stock merchandise delivered to the contiguous United States, and does not include Alaska, Hawaii or APO/FPO addresses.


Studio Backordered items are currently out of stock, but are available for purchase.  Your entire order will ship with the backordered item(s) within 12 business days.


Pre-Order items will ship as indicated on the product page. Once shipped, your items will arrive at your U.S. address 3-8 business days (Ground Shipping) after your order is shipped.

Help & Guides

Customer Reviews

Overall Rating

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  • Susan · 11/23/2015


    This fits perfectly with the Go Hexagon. I used it with my Studio with the adapter and it cut 6 layers perfectly.

  • Bonnie · 9/30/2015

    No dog ears

    So happy to have this die. No dog ears makes piecing fast and better seams.

  • Diane · 8/10/2015


    Just placed my order this am. Already looking at fabric to cut with it! Going to make a charm quilt and can't wait!

  • Mary · 8/9/2015

    Such a Timesaver!

    I just cut over 200 triangles in little time. I really like the notches, great for matching up with the large hexagon. I pre-cut my triangles and hexagons to take on a 5 week trip from Oklahoma to Pennsylvania, as I expect to get the (pictured on hexagon label) hexagon/star quilt top done while visiting family. They are gone during the day and I can just sew away!

  • Gloria · 7/20/2015

    Love all my dies

    I really like the equilateral triangle. Using the die saves so much time. The notches help insure accurate seams.

  • Diane · 6/14/2015

    Most useful die

    I found this die is very useful to cut perfect triangles. They go together perfectly without pinning and work well with the heat on and half hexagon die cut pieces as well. I used it the first time with some of my own hand dyed fabrics! made a stunning quilt!

  • Martha · 5/7/2015


    I ordinarily shy away from rectangles but no longer with my acuquilt cutter...the "marking for matching" eliminates this problem not to mention that all pieces are perfectly cut.

  • Jo · 5/7/2015

    Equilateral Triangle- 4 1/2" sides

    This is the best product EVER! I'm making a quilt called "Stripes Squared", you need 900+ triangles to make it. I would not even consider making it without this die! It cuts my cutting time in less than half and gets me sewing much quicker! LOVE IT!

  • Katie · 3/25/2015

    Wonderful for Spider's Web Quilt

    I got this die to make my daughter a Spider's Web Quilt. Most people call these String Quilts. Has made cutting out the triangles so easy, and breezed right though the stitching I made. Got to order more dies for more quilts now.

  • Lisa · 2/25/2015

    Great block that is easy to use in many different ways.

    I love the easy use of this die. Currently I am making a quilt using scraps. Also, I found that this die works perfectly with charm packs. There was hardly any waste of fabric.