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The Makita HP1640 is a corded electric hammer drill with dual operation modes for drilling into various materials and features an ergonomic handle, rubberized soft grip, and a depth gauge. With dimensions of 11.4 x 2.9 x 7 inches and weighing 4.3 lbs, it operates at 120 volts and 680 watts, offering 0-2800 RPM and 0-44800 BPM.

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Why does my hammer drill have no hamner?

Hp 1640 hammer drill? 19 21

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@toistroked you are not giving us a lot to work with here. No sure what the 19 21 numbers mean in your question.

For now I would suggest that you use something like this video and check out what is going on with your Makita. Check the gears and make sure those are all still where they are supposed to be.

For a parts list a well as an explosion drawing download use this Parts List Makita HP1640

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