I recently came into some tips for the Weller D550 gun. It's the large dual wattage (200/260) gun, the tips are Weller part # 7250. I'll be willing to sell five twin packs for what I paid, $5 per pack (2 tips). It's not a "steal", they can be had for $5 retail anyway, but I'll not live long enough to use them all. Thanks, Bill, N2YEG