diff --git a/EMkToolConst.h b/EMkToolConst.h
index b44f723..567d71b 100644
--- a/EMkToolConst.h
+++ b/EMkToolConst.h
@@ -36,6 +36,7 @@ enum ToolType {
    TT_SAW_FLAT = TF_SAWBLADE + 1,          //   513
    TT_MILL_STD = TF_MILL + 0,              //  1024
    TT_MILL_NOTIP = TF_MILL + 1,            //  1025
+   TT_MILL_POLISHING = TF_MILL + 2,        //  1026
    TT_MORTISE_STD = TF_MORTISE + 0,        //  2048
    TT_CHISEL_STD = TF_CHISEL + 0,          //  4096
    TT_WATERJET = TF_WATERJET + 0,          //  8192
@@ -46,7 +47,7 @@ bool inline IsValidToolType( int nType)
 {
    return ( nType == TT_DRILL_STD  ||  nType == TT_DRILL_LONG  ||
             nType == TT_SAW_STD  ||  nType == TT_SAW_FLAT  ||
-            nType == TT_MILL_STD  ||  nType == TT_MILL_NOTIP  ||
+            nType == TT_MILL_STD  ||  nType == TT_MILL_NOTIP  ||  nType == TT_MILL_POLISHING  ||
             nType == TT_MORTISE_STD  ||
             nType == TT_CHISEL_STD  ||
             nType == TT_WATERJET  ||