Carbide turning insert, wedge shape, double sided, fixing, hole dia. 2. 70 mm, L. H. boring bar dia. 10 mm, min. bore, entry dia. 12 mm, steel body, through coolant, L. H. boring, bar dia. 12 mm, min. bore entry dia. 14 mm, L. H. boring bar dia. 16 mm, entry dia. 18 mm