The Tweco 2-4 Style nozzle is used on Tweco 2 AND 4 mig guns.
When using on a Tweco 2 style mig gun, you must use also the OTW52FN tip holder/diffuser.
Constructed from copper with swaged insulator, they offer additional durability.
We have these available in 3 styles.
OTW23-37 10MM hole
OTW23-50 12MM hole
OTW23-62 15MM hole