絕緣襯套

The threads machined cleanly and it seats the nozzle snugly against the diffuser—no wobble or gas leak on my 15TG setup. Needed this exact part to replace a worn one mid-job, and it did the trick without any fuss.

This bushing fit perfectly on my 15TG gun and holds the M3T-N50 nozzle securely in place. A little pricier than I was expecting, but the quality is clearly better than the stock part.

Finally found a replacement bushing that actually threads smoothly onto the diffuser without cross-threading. The fit is snug enough to hold the nozzle securely, even during extended welding sessions. This little part saves me from buying a whole new consumable kit.