long shank reamer long shank reamer The photos and introductions belong ... excellent rigidity, tooling can conduct highly efficient machining.1.General\high precision product, surface finish≤Ra0.15 ... milling Type of flute:(standard and non-standard 1-flute~12-flute series mill, reamer): deep ... Comparing with ISOK20&general tungsten steel, it has 1-2 times lifetime and excellent wear resistanceFrom high ...