Application: Suitable for cutting common carbon steel?tool steel?cast iron, etc. Machine:Used on portable angle grinder Usage: Grinding weld?cleaning burr & rust?surface polishing, etc. Advantage: High grinding efficiency, long service life, high cost performance, comfortable for operator. Specifications: D×H×dD×H×dABRASIVEGRITHARDNESSMAX. R.P.M. Packaging 100X4X164"X1/6"X5/8"A46Q15200280 100X6X164"X1/4"X5/8"A30Q15200200 125X6X225"X1/4"X7/8"A30Q12200100 150X6X226"X1/4"X7/8"A24Q10200100 180X6X227"X1/4"X7/8"A24Q850080 According to customer's requirements .