THIS IS A COLLIS MORSE TAPER SLEEVE SET, COMPRISING FOUR PIECES. THE SET INCLUDES THREE COLLIS SLEEVES AND ONE ACCUPRO SLEEVE. THE SIZES PROVIDED ARE TWO 2MT TO 4MT SLEEVES, ONE 3MT TO 4MT SLEEVE, AND ONE 1MT TO 2MT SLEEVE. THIS ASSORTMENT IS DESIGNED TO SUPPORT DIVERSE TOOLING NEEDS BY ADAPTING BETWEEN DIFFERENT MORSE TAPER SIZES.