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Kai RX-45 Rotary Cutter - 45mm


Product Description

The KAI RX-45 - 45mm Rotary Cutter features a convenient slide-open blade design, where the blade is released and contracted via a slide lever along the handle. It also has a universal grip for right or left-handed use, and includes a guide arm that makes adding seam allowances an easy chore.  Additionally, most brands of rotary blades will fit our KAI rotary cutters.

We also have three types of blades that are compatible with this rotary cutter: the 45mm straight blade, the 45mm pinking blade, and the 45mm wave blade.

*Includes the RX-45 rotary cutter, guide arm, and a KAI 45mm blade.*Blades now made in the new KAI Vietnam Factory!  Same great product, same great Japanese steel!

Free shipping for orders in the USA. Additional shipping fee for international orders.

Product Videos

Rotary Cutters and Blades 01:32

DIY designer Jane Monzures take us through the highlights and functions of Kai Scissors most popular rotary cutters as well what makes the Kai blades different.

  • Rotary Cutters...
    DIY designer Jane Monzures take us through the highlights and ...

Product Reviews

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  1. The guide arm is so handy! 5 Star Review

    Posted by on Jul 31st 2021

    I use the guiding arm to easily 'add on' extra seem allowance to a traced pattern. Sooo helpful!

  2. The Best Cutters 5 Star Review

    Posted by on May 15th 2020

    Great Cutter

  3. Easy cutting 5 Star Review

    Posted by on May 14th 2020

    I haven't had a chance to use them much, but they work very well, so far. Very easy to operate.

  4. Perfect for sewing & quilting 5 Star Review

    Posted by on Apr 11th 2020

    It was perfect during this uncertain time. I'm a beginner quilter and it cut perfectly everytime, without much effort. I realized that I didn't need to push down so hard.

  5. Best ergonomic cutter ever 5 Star Review

    Posted by on May 2nd 2019

    Have had one of KAI rotary cutters for many, many years but when lent to someone they unfortunately damaged the little plastic piece that holds the blade in position (it was quite old). So, as I liked it so much, I purchased 2 (along with spare blades) so I have a back-up. Ergonomic handle ensures ease of use with little pressure required.

  6. WOW! 5 Star Review

    Posted by on Apr 1st 2019

    I have had a popular brand rotary cutter for over 20 years and it never, ever cut a completely clean line with or without a lot of pressure being applied. A friend of mine recently suggested I purchase a Kai rotary cutter and blades, and I am so happy I followed her advice! It is the best rotary cutter I have ever used hands down!!! You do not have to apply a lot of pressure and the blade cuts through clean and smooth. I can obtain an accurate cut every time. Thanks Kai for a great cutting tool that has made my cutting and sewing life enjoyable!!!

  7. Great rotary cutter 5 Star Review

    Posted by on Jan 10th 2018

    I probably own 12-15 rotary cutters. I think this is my new favorite. It is ergonomically very comfortable. I do a lot of rotary cutting because I make handbags, totes, etc. This is not heavy. The curve makes it very comfortable and the blade has lasted an unusually long time. I would highly recommend.

  8. Great Products 5 Star Review

    Posted by on Oct 12th 2017

    Wonderful scissors and cutting tools.

  9. Love it. 5 Star Review

    Posted by on Oct 9th 2016

    So glad I found your company.