Thread diameter (d1)UNF 1/4Pitch-Inch (TPI)28 Threads per inchTotal length (l1)50 mmFlute length (l2)18 mmShank Ø (d2)6 mmSquare wide (sw)4.9 mmShank typeStraight shank with squarePre-drilling diameter (Ø)5.5 mmNormDIN 2181Tool materialHSSSurfaceBrightCutting directionRightTolerance d1 (Tol. d1)2BQualityECOIntrastat (HS) code82074010EAN code8716563810896