Iron Sheath Adapter: Robust iron adapter securely connects to M18/M12 Hackzall tools (models 2625-20, 2520-20, 2420-22). For Milwaukee 2625-20 18V, 2520-20 12V Fuel and 2420-22 hand held hackzall. Universal 3x12" Fit: Blade seamlessly fits all Extractor tools and Sheath Style Adapters.