This standard specifies the types and dimensions of wrenches for cylindrical handle broach chucks. The wrenches specified in this standard are suitable for loading and unloading teams JB/T 3411.19-1999 "Sliding block automatic cylindrical shank broach chuck dimensions" and JB/T 3411.18-1999 "Sliding block manual cylindrical shank broach chuck dimensions".
JB/T 3411.20-1999 history
1999JB/T 3411.20-1999 Wrench for holder for cylindric shank broach.Dimensions