
This is a complete set of hex bits from 1/8"/3mm to 3/8"/10mm. It includes 9mm which is not available in all kits. Ticket only for removing calipers with socket head screws. They are well done. Feel free to use a 3/8" ratchet. long hex shank is stiff and strong. You would have to really abuse them to break them. They are not designed to withstand shock loads, so overdoing it is considered abuse. The small ones Sizes naturally curl when tightened but I couldn't twist them permanently, they spring like they should.As others have pointed out, make sure you open the case right side up or you will lose half of the Contents spills in a heap onto the other half. It would be better if both sides were side by side. However, it is much better than a bag, roll or rack. All keys are in one place, neatly organized and secured by a secure clasp on the Lid protected.Not tool trolley quality but I like a zero less in price and it's one of the best free tool trolley sets I've used..

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