Rotary Cutters? 45mm or 60mm
 

What is your size preference for a rotary cutter? I had read where the 60mm cuts better with less pressure. I have only used the 45mm. Thank you

I sold my 60mm worrying that I would really cut myself badly with a blade that large. The blades are very expensive. You should be able to cut multiple layers with a 60mm. Being disable with poor motor skills, I am cutting with my Klutz glove and a 28mm rotary cutter.

I have both....use my 60mm for cutting out fabric for the quilts and my 45mm for trimming.

I have all sizes. I use the 60 when I want to cut more then four layers of fabric. The new rotary cutters have a selection to cut thick layers. More of the blade is exposed to cut more layers. I haven't notice any less pressure used to cut with either one.

I think the amount of pressure required depends more on the sharpness of the blade than on the size of the cutter. I use the 45 for most things, and like Onebyone I use the 60 when I'm cutting through lots of layers. I can't think when I last used the 28, but I bought it for curved cuts.

I also have both. A sharp blade is the key. My cousin & I split an order of 100 45MM blades on ebay for less than a dollar a blade. I found now I'm more apt to change them when needed rather than applying more and more pressure. I spend lots of $$ for fabric for a quilt, so why not also use a new blade for less than a dollar every couple projects. I use the 45 almost all the time, but the 60 does come in handy when cutting many layers or squaring up a quilt after quilting to cut thru the whole sandwich.

I use 45mm for most things. 60mm is great when you have thick fleece, flannel, batting or a lot of layers of cotton so it is also very valuable

I change the blade at the first skip cut. Why wait for it to get worse?
I get so frustrated at guild members that use a blade that works fine if you make several passes! The fabric is so chewed up it looks like they used a chain saw on it. I think if the cost of a blade is enough to break your budget then why do you use a rotary cutter in the first place.

I use the big blade for big things, little blade for little things.

Most of the time I use my 45 mm. I use my 60 mm when cutting flannel or wools, thicker fabric. So both have their use.