edge ground process, wood working drill Manufacture and supply high quality ... hex shank, straight round shankSurface treatment: bright finished, tin-coated, black-oxidePacking:Skin pack, double blister, single blister, sliding card, injection ... straight round shank, SDS-plusSurface treatment: bright finished, tin-coated, black and white, color paintedPacking: Skin pack, double blister, single blister ...