Material: Special casehardening steel with certified chemical composition. Core strength > 900 N/mm2. Hardness: Nitrite case hardened to 58 Rc +/- 2, to a depth of 0,8 - 1 mm ( 0.032 - 0.039 inch ) Finish: All surfaces finished with an enviromentally friendly hard-cast granular material. Tapers precision ground Ra = 0,2, body of tool precision ground Ra = 0,4. All sur- faces treated to resist corrosion. Quality level: Taper tolerance < AT3. Our gauges are checked to the same masters used by the major machine producers. Our repeatable accuracy Level is = 1 µm. We also use these gages for spindle production. Runout tolerance: All tolerances are specified in our catalog. We use a maximum of 2/3 the allowed DIN tolerance when manufacturing our tools.
