I was looking for a wire brush to de-rust an old chassis prior to re-painting and saw screwfix do a range by titan. Problem is they are all limited to 4500 rpm and my angle grinder has a no load speed of 6500. Checking the screwfix range all the angle grinders seem to exceed 4500rpm.
Can anyone recommend a wire cup brush, the knotted aggressive variety, with
14mm screw thread that can be used in an angle grinder with 6500 rpm limit?AJH
as you press on to the chassis the revs will drop....
Jim K
In message , andrew writes
My 5" angle grinder has variable speed. Why not invest? Whatever speed you use, your woolly jumper will end up festooned with bits of wire.
regards
oooops
Jim K
IIRC the silverline ones are specced to at least 11,000 rpm, and have worked fine for me.
NT
Assume 115mm angle grinder?
Where does it say they are limited to 4500rpm?
If it has an M14 thread its designed for an angle grinder - it wouldn't fit anything else AFAIK.
I've used the Titan ones on my 115mm Site angle grinder (10,000rpm) extensively without problems. I used the Bosch version on the same job and noticed no difference in longevity or performance - just a big difference in price.
On the backing cup.
Thanks for the suggestions, I'll avoid Titan in the future ( it disintegrated 20 seconds into the job).
AJH
Oh. When I used Titan they were as good as the more expensive Bosch.
Got a link to the one you used?
Anything decent with an M14 thread is usually rated to 10k rpm. I limit myself to twisted cups though, as they throw fewer wires. I also wear a leather apron.
Mine are Toolstation cheapies.
..but unfortunately not always. Wire brushes are known for their tendency to be relatively low speed rated. I've even seen 115mm cutting discs rated at 6500rpm
NT
47965 screwfix on their 110V Site 9" which is a slow grinder
AJH
Sorry, though you were talking about 115mm grinders.
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