3M Cubitron 3 Depressed Center Grinding Wheel, 90006, 36+, T27General Information Brand Cubitron Attachment Type Threaded Bond Type Resin Product Type Grinding Wheel Wheel Type T27 Country Of Origin Austria Sold As Case Lead Time 2 days California Residents Proposition 65 Warning Dimensions and Specifications Center Hole Thread Size 5 8" 11 Grit 36+ Maximum Speed 10200 rpm Overall Diameter (Imperial) 6 in Overall Diameter (Metric) 150 mm Overall Thickness (Imperial) 0. 25 in Overall Thickness (Metric) 6 mm