The Tungaloy America CTER grooving toolholder accepts Tungaloy indexable insert styles DGM/SGM, DGS/SGS, DGE, DTX, DTE, DTR, and DTA (sold separately) for external right-hand grooving operations. It has a block shape for rigid toolholding and is made from steel for strength with a rust-resistant coating.

Grooving toolholders are tools that hold an indexable insert designed for grooving operations. Indexable inserts have multiple cutting edges that can be rotated when one edge wears down and can be replaced when the cutting edges are worn.

Tungaloy America, Inc. manufactures tools for turning, milling, and drilling. The company is part of the Tungaloy Corporation, which was established in 1934 and is headquartered in Fukushima, Japan.