The media could not be loaded. I used these hook knife blades by EZARC with my Greenworks oscillating multi-tool. The fit was simple for my tool and didn't require the use of the adapters that are included with this 3-pack. I haven't used this for shingles but these blades are great for cutting other materials as long as they have some level of stiffness. I make a lot of forms from cardboard and this works well for cutting thicker material as well as following curved or irregular lines. The blades are very sharp and can be utilized for either a forwards or backwards cut. You may need to experiment with your material to see which direction works best. I tried cutting some old scraps of shag carpet but the looseness of the material didn't work well with my oscillating tool. A simple carpet knife still works best for that but I could see this working well with stiffer rubber mats, Berber carpet or vinyl flooring. For my purposes, this has provided another cutting option for my tool kit but be aware that it may not always cut as you'd expect and can take some practice to get the best angle and speed of your tool. At the current price of $16.97, I'll give this 4 stars.

The EZARC Oscillating Multi Tool Hook Knife Blade set is perfect for cutting soft materials like roofing shingles, PVC, carpet, and cardboard.

The blades are sturdy and feel durable in hand. Installing them onto my oscillating tool was a breeze; they fit securely and didn't wobble during use.

They made quick work of roofing shingles, cleanly slicing through without any tearing or jagged edges. I also used them on PVC, and the precision was impressive. The hook knife design helps with control and prevents accidental damage to underlying surfaces.

You get three blades in the set. The blades held up well during extended use, showing minimal signs of wear.

Overall, they've proven to be reliable, versatile, and efficient in tackling soft materials. If you're in need of quality multitool blades for such tasks, give these a try.

blades seem to be well made and are very sharp. cut some carpet and the blade held up well. i've had good results from all the ezark blades i've purchased.

A little pricey for three blades.

To cut up and dispose of an 8x10 area rug. The rug was a medium pile with a burlap backing. Used the hook knife blade in a Rockwell oscillating multi-tool on the low setting and a 5-degree swing. With the hook end of the blade, it cut very fast and precise. Two cuts for 16 ft. Stayed sharp. Very good quality.