Stainless Steel Bore Brush Stainless Steel Bristles Wire Brush for Power Drill with Hex Shank Handle (0.8 cm, 1 cm, 1.2 cm, 1.5 cm, 1.7 cm, 1.9 cm, 6 Pcs)

I could not tell from the photo(s) in the ad, but these brushes turned out to be very durable! I had 200,000-mile rust in the four holes to recive trailer hitch securing bolts. My heaviest tool was a right-sized tap, which I operated alternately with fingers, vise-grip, and 3/8 variable speed drill. Between efforts with the tap I ran in PB Blaster, let it sit, then bore-brushed each hole. The durability and length of these brushes were essential in the cleaning process between borings with the tap. Probably a total time of 4 hours -- lots of false starts in the first 2-1/2 hours; only an hour-and-a-half, once I had these brushes on the job! Now they are cleaned and packed away for whatever the next rehab project will be:)

Excelente producto

Cleaning a metal gate...