We are isots 16949 certified unit engaged in manufacturing of stainless steel wire thread inserts ( helicoil ) in korea and over 1 million pcs producing per month . * range of sizes from 3 mm to 45 mm and fine size also . Iso metric & iso metric fine. Jis size . Din size 45mm over are also available. * inch size : 2-56 to 1 in inch thread series including installation accessories such as installation tool * 5 different length : 1d, 1.5d, 2d, 2.5d, 3d. * free running and locking type. * wire thread insert ( helicoil ) material: . Stainless steel 304 ( 18 - 8 ) . Stainless steel 316 . Phosphor bronze. Phosphor bronze plating * sti tap . Hand tap. Mc tap * installation tool . Manual type. Priwinder type. Air tool. Electric tool * kit from m3 to m12 consist of ; 1.5d length 15 pcs sti tap 1 pc hand tool 1 pc