Weather Pack Unsealed Double Terminal Crimper 12040070 Delphi OEM GM Unsealed Double Terminal Crimper 12040070 Designed to crimp doubles (two wires) within maximum range 20-14 AWG. Performs partial or complete crimps on difficult "singles" including 10 gauge 56 Series male and female terminals. By using the Double Crimp Tool, you can crimp double F-Type terminals where the wire ranges from 10 to 18 AWG Perfect For That General Motors Restoration Project