BTL-A4
Well-known member
I'm looking for 1/8" [3mm] arbor METAL (not nylon) cup brushes for my rotary tool. They have them at McMaster-Carr for $2.75 each. These show COO as Germany:

They can also be had on Ebay for about $13 for a 45 piece set (with a bunch of other ones I do not need):

Does anyone have any experience with either of these? Are the M-C ones significantly better? I'm looking at $0.28 each vs ten times that. I would prefer ones that last. I realize these are consumables, but I would like to consume them at the slowest rate possible.
Another way of looking at this is I can get 15 of these at M-C for $35 or 15 plus 30 extra for $13 on Ebay, or 5 at M-C for the price of the set on Ebay.

They can also be had on Ebay for about $13 for a 45 piece set (with a bunch of other ones I do not need):

Does anyone have any experience with either of these? Are the M-C ones significantly better? I'm looking at $0.28 each vs ten times that. I would prefer ones that last. I realize these are consumables, but I would like to consume them at the slowest rate possible.
Another way of looking at this is I can get 15 of these at M-C for $35 or 15 plus 30 extra for $13 on Ebay, or 5 at M-C for the price of the set on Ebay.