Check the listing for details. Vertex VBHC-MT4-BC3 Boring Head Set MT4 M16x2.0 Precision Tool New. Condition: New. Listed at 672.57 USD. Equipped with an MT4 shank and M16×P2.0 thread, this tool ensures high rigidity and stability during machining. - Type: Boring Head Set (MT4, M16×2.0). Type: Boring Head Set withMT4 Shank. Thread: M16 x 2.0.