- SIADISC - SIAFAST 5" X NH - 400 GRIT SIASPEED HOOK/LOOP62T678377050400CA$53.43Availability: AvailableSIADISC - SIAFAST 5" X NH - 320 GRIT SIASPEED HOOK/LOOP62T678377050320CA$53.43Availability: Available3MTRIZACT GRADE A5 464LA - A5125C 1-1/4 X NH X 500 D/R6507000148157CA$951.46Availability: Special Order