3M 668X-8XNH-800L-9M ~ Diamond Lapping Film 668X 9.0 Micron PSA Disc (8 Inch x NH) HT BAR so you can use it

so you can use it with portable and fixed-base tools that require the wheel to fit an existing arbor

3MVitrified Grinding Wheel 33VC T1N-500X75X203

Part # 07Q608 Sold in qty's of 10 Arbor 10mm Diameter 6 Inch Grade Medium Grit 80 Max RPM 8

Part # 15G208 Sold in qty's of 1 Arbor 1 Inch Diameter 6-1/2 Inch Grit 80 Width 1 Inch Max RPM 5

and it holds its shape to minimize wheel dressing

3M 668X-8XNH-800L-9M ~ Diamond Lapping Film 668X 9.0 Micron PSA Disc (8 Inch x NH) HT BAR so you can use it3M Diamond Lapping Film 668X, 9. 0 Micron PSA Disc, 8 in x NH, 25 per inner 250 per case 668X 8XNH 800L 9M Diamond Lapping Film 668X 9. 0 Micron PSA Disc (8 Inch x NH) Part # 7000036208 Sold in qty's of 25 Micron 9 Country of origin USA