Conical DEC (diamondi yowonjezera compact), kampaniyo imapanga mapepala osapangana omwe ali ndi mawonekedwe osiyanasiyana monga mphero, piramidi ya katatu (piramidi), chulucho, Benz ya triangular, ndi mawonekedwe a arc.Ukadaulo wapakatikati wa pepala lopangidwa ndi diamondi la polycrystalline limatengedwa, ndipo mawonekedwe ake amakanikizidwa ndikupangidwa, omwe ali ndi malire akuthwa komanso chuma chabwinoko.Amagwiritsidwa ntchito kwambiri pobowola ndi migodi monga ma diamondi, ma roller cone, migodi, ndi makina ophwanya.Nthawi yomweyo, ndiyoyenera makamaka pazigawo zina za PDC kubowola, monga mano akulu / othandizira, mano akulu, mano a mzere wachiwiri, ndi zina zambiri.