Threetheethed countersinks taper shank
Bit semicircularBit specialBit-peaksBoring head zenkovochnyeBoring HeadsChange heads with connectionChetyrehzubye countersinks taper shankCounterboreCounterbore of high speed steelsCountersink for holesCountersinks MachineCountersinks threetheethed shankCountersinks tsapfennyeCup-shaped cutterCutter shankDisc cutterGear shaping cuttersRamReamers CarbideRoller cone bitsShaver discTapered countersinkThreetheethed countersinks taper shankTool for shaping a hole in metal friction