Instrument Sharpening DVD and Manual, English Instrument Sharpening DVD and Manual, English SDVD It's About Time to Get on the Cutting Edge Self-Instructional Instrument Sharpening DVD includes the manual and post test for C.E.U. credits. Time: 12 minutes. Where to Buy x Category Dealer PartnersSales RepresentativeStrategic MarketsSchools RepresentativeAccutron™ Equipment Sales Zip Code Find RepresentativeReset Select a category, input a zip code and click on Find Representative, or explore the complete list here.