Quick Change Disc Backup Pad: TR, 3 in Dia, 3/8"-24 Internal-Thread, Hard Density

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Item: 52WN66,
MFR: 88748,
Brand: 3M

Technical Specification
Compatible Abrasive Type Quick-Change Sanding Discs, Quick-Change Surface-Conditioning Discs
Abrasive Mounting Quick Change System TR
Overall Diameter 3 in
Connector Size 3/8"-24
Tool Connection Type Internal-Thread
Density Hard
Maximum Operating Speed 20,000 RPM