ADJUSTABLE HAND REAMER These reamers are ideal for use on steel or nonferrous metals The reamer blades are made from High Speed Steel, accurately hardened and relief ground  Reamers expand by loosening one adjusting nut and tightening the other  USING OF REAMERS   1. Remove only a small amount of metal      approx 0.002" (0.05mm) per cut 2. It is bettet to use two small cuts rather than      one large one as larger cuts can strain      the reamer. 3. When cutting soft material hone the cutting      edge.