I purchased it for $4. It's a rusty vintage Hitachi Impact Driver, model WH8DB3. Due to water damage, its electric motor suffered severe rusting, and the battery is no longer functional. In this video, I will demonstrate the restoration process, including repairing the electric motor and upgrading the battery from Ni-Cd to lithium
* Impact drive Information *
- Brand: Hitachi
- Model: WH 8DB3
- VOLTS: DC9.6V
- Hex Shank: 6.35 mm (1/4")
- Rotation speed:0-2200 rpm
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