- Designed with threaded taper lock that increases tip life by providing excellent heat transfer and electrical conductivity;A quick twist is all it takes to install these tips. In case of burn back, another quick twist will get you back on the job in moments;Fits all Best of the Best (BTB) Platform MIG guns - from 200 - 600 amps. If gun was manufactured prior to June 1, 2014, then only compatible with Q-Gun and S-Gun Series MIG Guns -

Best Welds
Best Welds MIG Contact Tips, 0.052 in Wire, Contact Tip, Bernard, 25 EA, #7498
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