6PCS FILE SET 1.Made of T12 special steel stamping,induction quenched 2.Double color soft rubber handle,for comfortable grippi 6PCS FILE SET1.Made of T12 special steel stamping,induction quenched2.Prefect teeth heigh and teeth space to ensure the clean and trim at the surface of work-pieces after filing3.Double color soft rubber handle,for comfortable gripping 6PCS FILE SET