Used the original Japanese Makita/ MAKITA HR4000C high power electric hammer hammer 220V|hammer electric|makita electric hammerhammer hammer - AliExpress
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Power Tool Accessories Rotor Replace for Makita HR4000C HR4040C Electric Hammer Rotary Hammer Rotor AC220-240V 5 Teeth Motor - AliExpress
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MAKITA HR4000C - repair of a faulty rotor - video Dailymotion
Makita HR4000C Demolition Hammer (40mm Chuck) 1-9/16″ Rotary Hammer (SDS-Max, Variable Speed): Dual Purpose for “Hammering Only” or “Rota… | Động lực, Khoan, Điện
Used the original Japanese Makita/ MAKITA HR4000C high power electric hammer hammer 220V|hammer electric|makita electric hammerhammer hammer - AliExpress
MAKITA HR4000C - repair of a faulty rotor - YouTube