MPXBM Steel Watch Collet Closing Tightening Reaming Tool Watchmaker Collet Closing Repair Tool Parts

Has a variety of notches for tightening all sizes of hairspring collets and for reaming. Superb quality steel construction designed for working on watch balances. Perfect for tightening hairspring collets and reaming, suitable for professionals and watch repair shop. Professional watch repair accessories, give you a satisfactory experience. Suitable for watch makers and watch repairing workers to use, practical and wonderful tool.