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Angkur undercut bekerja dengan cara “locking”. Angkur jenis ini biasanya terdiri dari dua komponen, yaitu baut dan selongsong.torque controlled: the anchor is inserted into the hole and secured by making use of a specified torque on the bolt head or nut by using a torque wrench. A certain sub-class of this anchor is termed wedge sort.Komposit: