This is a pack of 5 Norton Type 11 flaring cup grinding wheels (MPN 66253479679 / Spec 57AC162-QB-X348). Designed for heavy-duty stock removal and snagging on cast iron and steel applications. Each wheel measures 5 inches in diameter by 2 inches thick with a 5/8"-11 threaded arbor hole and a maximum operating speed of 7,260 RPM.
Inspection Details:
Item was fully removed from the box for inspection. Minor cosmetic scuffs and surface scratches are present on the top paper labels and metal rims of all wheels from box contact and storage. Functionality and grinding abrasive surfaces appear unaffected. Please refer to the photos for more information.
This unit only includes what is photographed in the listing. Made in USA.
Technical Specs
| Item | Flaring Cup Grinding Wheel |
| Manufacturer Part Number | 66253479679 |
| Series | 57AC |
| Wheel Type | Type 11 |
| Diameter | 5 in |
| Thickness | 2 in |
| Arbor Hole Size | 5/8"-11 |
| Arbor Hole Type | Threaded Hole |
| Rim Thickness | 1-1/4 in |
| Back Thickness | 3/4 in |
| Abrasive Material | Silicon Carbide/Aluminum Oxide |
| Abrasive Grade | Extra Coarse |
| Abrasive Material Grade | 57A |
| Grit | 16 |
| Wheel Hardness | Q |
| Bond Type | Resin |
| Primary Material Application | Cast Iron |
| Compatible Tool Type | Cup Grinder |
| Maximum Operating Speed | 7,260 RPM |
| Country of Origin | USA |
| Pack Quantity | 5 |