Seems strong. I cut into a Magura bleed screw that had a damaged torx hole. It cut well the whole time and didn't snap like other cheap drills i've put a bit of weight/stress on. For my job I'd have been better with a 3-4-5 mm set so i could pilot drill then step up sizes to grip the bolt and remove it. I'd say this is a quality product.
Verified purchase: Yes | Condition: New
Fantastic sharp and hard wearing drill bits - used to drill / help extract well-stuck, rusted in bolts in an old cast iron woodstove door. Now looking to buy a few more in bigger sizes for future use.
Verified purchase: Yes | Condition: New
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