I have used Irwin circular saw blades for many years and have found the quality to be as good if not better than blades that cost 2-3 times the price. my last order of Irwin drill bits and screwdriver bits is not. As previously mentioned, drill bits are soft and only suitable for light wood, and screwdriver bits are too soft and flimsy to be used for any application. I used 3 Phillips bits while removing 12 screws from the storm door frame. After 4-5 screws, the bits in the screw head are "cut and smeared" and are no longer used. Finally I pulled out some Dewalt bits to finish the job.
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