Comparison : Item # XCGW35646, 1/4" Fast Cut Grinding Depressed Center Wheels, Type 28, USA
Item # XCGW35647, 1/4" Fast Cut Grinding Depressed Center Wheels, Type 28, USA
Item # XCGW35660, 1/4" Fast Cut Grinding Depressed Center Wheels, Type 28, USA
Item # XCGW35661, 1/4" Fast Cut Grinding Depressed Center Wheels, Type 28, USA