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Hello! I'm a chat assistant and I've analyzed the provided user manual for the HiKOKI Cordless Screw Driver models W18DA and W18DB. This document contains information on operating modes, safety warnings, battery usage, and maintenance of the tool. It also explains unique features such as the adjustable operating mode, rotating direction selector, and the impulse mode for precise countersinking. I'm ready to answer any questions you might have about your device, please feel free to ask.
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What is the recommended temperature range for charging the battery?
What does it mean when the LED light flashes three times during operation?
What should I do if the battery is leaking?
What is the purpose of the automatic mode?