Hi Gang: Has anybody used thes plugs? The prices $3.00 each including shipping, is very tempting! Stay well.
I have purchased about thirty of these in several batches. The ones I have are from Taiwan. It seems hit and miss. I’ve opened 4-5 and found the coil mashed or damaged on two. As long as the coil looks to be intact they start and run well- about like the Enya 3. I haven’t used them on a pipe nor have we run them for any period of time but they are readily available and don’t cost 15-20 bucks...Dave
Could one “chase” the threads on an oversized plug with a 1/4”-32 die to make oversized plugs fit? Stay well.