"Bought these for some heavy duty work in my shed (driving 80mm long screws) using electric screwdriver. After about 40 screws one started slipping and the second one is showing signs of wear (25+ screws.
Better than the multi-pack cheapies and reasonable for the price.
Done the job they were purchased for.
For less strenuous work they would have lasted much better."
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Review 2 for Wera BiTorsion Diamond Bit Pozi #3 25mm