R1.5 to R12.5. R12.5 x 20 x 32 x 150 R12.5 20 32 150. R12.5 x 25 x 32 x 200 R12.5 25 32 200. R1.5 x 6 x 9 x 75 R1.5 6 9 75. (mm) Flute Length. Full grinding, spiral groove, large amount of chip remove, avoid sticking blade, significantly improve production efficiency.
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