Reply To: Alternative gear case screw??? 1955 RDE-17 25 hp Johnson

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January 4, 2019 at 5:08 am #161888
frankr
Participant

    The electric or air impact drivers certainly are worthwhile, however for screwdriver-type screws, the hand impact driver is much better because the hammer blow keeps the driver bit seated in the slot (or Phillips) at the same time as torque is applied.

    Conclusion: You need both.