I purchased both types and I found they very good quick change when working on Model is a great help and they last a long time when sanding jobs .
Verified purchase: Yes | Condition: New
They are well made, but the grit claiming to be 60 grit is inaccurate, maybe 100 grit at best. Also the grit is very dense, so may clog up easily. However the mechanical structure of these discs is very good and would easily support the attachment of new abrasive paper on top of the original worn out paper. Very pleased with the product overall.
Verified purchase: Yes | Condition: New
Have used these for a number of years and they work well but are a little expensive
Verified purchase: Yes | Condition: New
As stated, arrived quickly, will use again
Verified purchase: Yes | Condition: New
Excellent value for money , Just the job .
Verified purchase: Yes | Condition: New