Both professionals and hobbiest, rejoice! The Excel Blades’ Excel Blades is set to become your next favorite tool! This multipurpose etching tool features a cushioned body, with a replaceable .058 tip needle, and is designed to easily remove tiny negative cuts.The item # 30614 is made of aluminum.This products works in conjunction with Excel Blades’ light duty blades: 05, 06, 10, 11, 12, 13, 16, 17, 17a, 21; Awl Tips: 30616, 30617, & 30623.It comes with 2 per pack.