576255 , 8 Inch x 1 Inch Bench Grinder Wheel A36 have Tyrolit grain and vitrified bond for use on all types of ferrous.Max R.P.M 3600Size Ø: 200 mmWidth: 25.4 mmHole size: 25 mmWith Hole reduction: 12.7 mmGrain: K60Weight: 1.74 kg