The KAI RS-45 - 45mm Rotary Cutter features a comfortable, soft-grip handle with a pressure-sensitive, 45mm blade and safety lock feature. It also has a universal grip for right or left-handed use, as well as an easy change blade system, with no springs or washers to lose. The KAI RS-45 Rotary Cutter is one of the easiest blade change systems on the market. 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 RS-45 rotary cutter 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.
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.
Showing reviews 1-10 of 25 | Next
Posted by Lori on Jun 25th 2022
Several people told me this rotary cutter was their favorite. This rotary cutter cuts very smooth. The only place I found to be a challenge is when I’m using slotted rulers. I like the protective shield that moves in place after finish a cut.
Posted by Kelly Sew - a - holic!! on Jun 29th 2021
My sewing partner in crime had been eye balling both the 28 and 45mm rotary cutters. We normally go for what the other suggests. I purchased both and plenty of blades. I have been working on a quilt and using both sizes has been wonderful.
Posted by tcf on Dec 6th 2020
I own several rotary cutters but these are my absolute favorite. I have problems with my hand using some of the other rotary cutters but this one is very comfortable and easily cuts through multiple layers precisely.
Posted by Kim Darling on Nov 21st 2020
I purchased this cutter after using a friend’s. I have numerous rotary cutters. This is my favorite. There are 2 positions on the cutter. One for lightweight and one for the heavier fabrics. All you have to do is apply pressure and cut. Love it.
Posted by Unknown on Nov 13th 2020
This does a great job cutting through even several layers of cork. I like the fact that the blade is automatically covered after use so if I were to drop it, there is less chance of a nasty cut.
Posted by Dawn Carlson on Jul 19th 2020
I’ve been using my Olfa rotary cutters before and wanted to give Kai‘A rotary cutter a try after purchasing their 7250. I’m hoooked. They are ergonomically designed and make it easy to cut with percision.
Posted by Lisa Palesch-Hawk on Jul 1st 2020
Happy with this product
Posted by Sue Moore on Jun 5th 2020
I love this rotary cutter, it's very comfortable to hold, it is very sharp. I love the safety feature of the lock button. I have tried every rotary out there. This is my favorite and the very best rotary I have ever had. THANK YOU!!
Posted by Linda on May 30th 2020
I have had this rotary cutter for years and love it. So, when my nephew decided that he wanted to make quilts I new he needed this tool. I purchased one for him and he thinks it is wonderful!
Posted by Antoinette on Jan 9th 2020
This rotary blade is the best I've ever used. The safety feature is unique and better than any of the others in my opinion. I don't usually comment, but this product and 2 other scissors I purchased leave me speechless.
Showing reviews 1-10 of 25 | Next