6 Gardner Bone Chisel 6 Gardner Bone Chisel CG6 The 6 Gardner Bone Chisel is used to shave bone with a 4mm mono-bevel tip. 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.