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Discover the perfect blend of precision and durability with our premium quality Hand Expansion Reamer . Engineered to meet the needs of professional users in various industries, this reamer boasts a 1 reamer diameter, a maximum expansion of 0.012, a straight shank design and 4-1/2 flute length for exceptional accuracy during machining tasks. Ideal for demanding applications that require a high degree of precision, our Hand Expansion Reamer ensures impressive performance while reducing the need for post-processing grinding or polishing.