18mm long x M5 thread. These copper contact tips will fit most models of SIP
hobby MIGs; Migmate, Topmig 150 & Sealey hobby MIGs; Mightymig etc.
Also compatible with other manufacturer’s hobby MIG torches such as
Cosmo, Telwin, Sureweld & Ferm.
Contact tips transfer current to the wire, so it's important to replace them
when they become worn or distorted.
The tips are sized for the diameter of wire in use. (For welding Aluminium
it is common practice to use a tip size one larger than the diameter of wire
to help prevent the wire sticking inside the tip.)
