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Dremel MultiPro Cordless Model 770 Type 1 - Battery Pack Repair : 4 Steps (with Pictures) - Instructables
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Powerextra 7.2 Volt 2000mAh Battery Compatible with Dremel MultiPro Cordless Rotary Tool Models Dremel 7700-01 and Dremel 7700-02 Replace for Dremel 757-01(Do not fit Dremel 770 Type 1, 770T2, 7300) - - Amazon.com
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Dremel MultiPro Cordless Model 770 Type 1 - Battery Pack Repair : 4 Steps (with Pictures) - Instructables
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