HAAVHVHVAAVHACBWPBWWPPaZZbTZLXBWPVHLLHBW50t5 0XXfo ht 05Rgne trap fo hl 05RgneehTehT trapl 0151R50P0.005CP0.005AABBR500.0050.0050.0050.0050.005X is the grinding part for 4 directions（colored part）0.0050.0050.005W0.005Steel insert brazing0.0050.005AW720Precision StandardShank effective length Zmin.≧10mm Table 1 is Zmin. dimension for Pmin and Wmin, formula 1 is for Z dimension.The limitations for shank effective length and range of selection.The connection part between shank and tip of carbide block punch is R50.For large dimension difference between the shank and tip, it may not be available to produce punches due to unsure shank effective length. For conditions beyond the following limitations, ensure Z dimension by altering V・H（shank dimensions）and B（tip length）.Table 1 Guide for Z min. dimension（without alteration, tip and shank are coaxial）VPmin70 3 1.50 18.428.438.448.4 4 2.00 17.127.137.147.1 5 2.50 15.925.935.945.9 63.00 14.824.834.844.8 8 3.00 11.415.425.435.4 9.913.923.933.910 4.00 7.411.421.431.4135.00 6.310.314.324.3 16 7.00 208.00 3.3 7.311.321.3Z＝L−B− X（100−X）Profile toleranceShankTip605040The length of R50 part（for the estimate value, refers to chart 1） For alterations LC·BC·PC·WC·TC or the tip and shank are not coaxial, calculate Z dimension according to formula 1. For the length of R50, the estimated value can be measured according toDarwing 1 and to be used as standard. For B dimensions, refer to right table.L40L50L60L70131925 2.0〜 6.0 6.1〜13.013.1〜20.01319251319135040701.0017.127.137.147.11.0014.824.834.844.82.0014.824.834.844.82.0013.023.033.043.02.00 9.913.923.933.92.50 8.012.022.032.03.00 5.2 9.219.229.24.00 3.3 7.311.321.35.00 0.7 4.7 8.718.7HWmin 3 4 5 6 81013162060StraightnessFor tip diameter is shorter than steel insert part （diameter a）, shank effective length Z should be longer than steel insert part length. Perpendicularity of mounting surfaceThe key groove position is within therange of shank effective length Z. Z≧10Formula 1 Z dimension arithmetic Limitations of the tapped type: for W≦a, Z≧b Limitations of key groove type Z≧b37.636.735.734.733.632.531.330.028.627.125.523.721.819.617.114.09.9The length ofpart R50Drawing 1 The measurement chart for length of part R50（scale 2：1）3530252015101716151413121110987654321XGuide for Carbide Block Punches
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