
They break on the shaft. I used 3 of them. One was enough for about 10 cuts. One was enough for 3 haircuts. One didn't go through the first cut and broke off. All of them were used in Rotozip.

πͺ Durable DEWALT DW3986C Portable Blade 3 Pack for Efficient Cutting
10 Review

πͺ Bi-Metal Cutting Blades: Imachinist S933414 - Enhancing Precision and Performance
10 Review

πͺ DEWALT DW3984C Portable Blade Set of 3-Pack
10 Review

Enhanced Cutting Efficiency with Olson FB23370DB 0 025 2 Inch Blade
10 Review