HSS SP/FL PARALLEL HAND REAMER 3.50MM

Metric. Used to produce a close tolerance surface finish by hand in almost any environment i.e. on site or in a workshop. Manufactured to BS 328 : Part 4 : 1990 and DIN 206B. METRIC TOLERANCES: Diameter: ~ up to 3.00. Tolerance: +0.008, -0.007. Diameter: Over 3.00 ~ up to 6.00. Tolerance: +0.010, -0.005. Diameter: Over 6.00 ~ up to 10.00. Tolerance: +0.012, -0.006. Diameter: Over 10.00 ~ up to 18.00. Tolerance: +0.015, -0.008. Diameter: Over 18.00 ~ up to 30.00. Tolerance: +0.017, -0.009. Diameter: Over 30.00 ~ up to 50.00. Tolerance: +0.021, -0.012.

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