"I wouldn't say I break a lot of standard bits when using them in my impact driver, but I've torn though enough of the DeWalt ones to be on my second box of 15. These Wera ones are indestructible. Yes, they are a lot more expensive, but they last forever. The diamond coating means they slip out less frequently too."
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Review 2 for Wera Impaktor Mini-Check Bits PZ ¼" x 50mm