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Amazon.com: MT20ML Adapter for Makita 18V Li-ion Battery BL1830 BL1860 BL1815 Convert to for Milwaukee M18 Lithium Battery : Tools & Home Improvement
Battery Adapter for Makita 18V Lithium-ion Power Tools,Convert Milwaukee 18V or Dewalt 20V Lithium-ion Battery to Makita 18V Lithium-ion Battery - Walmart.com