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Title: Mini Mill Belt Drive Conversion Kit  
Category: Machine Tools  
Brand: LittleMachineShop.com  
Description: A lightweight, CNC‑machined belt drive kit that quiets and simplifies spindle operation on a range of mini mills, enabling tool‑free speed changes from 0–4300 RPM.  
Details: The kit installs in 20 minutes with bolt‑on pulleys (9 mm/3 mm and 30 mm/5 mm keyways), supports 0–1700 RPM low

Price is $