Standard Abrasives Unitized Combo Mandrel 850029, 1/4 in Shank, 1 per case The Standard Abrasives Unitized Mandrel secures a 2-3? Standard Abrasives Unitized Wheel to a rotary tool for edge deburring and finishing applicationsThe silver button fits wheels with thicknesses of 1/8? or 1/4? and the black button accommodates wheels with thicknesses of 3/8? and 1/2?Use this mandrel with a Standard Abrasives 913 or 933 Unitized Wheel (sold separately). Product Information Brand 3M Part # 7000121642 Line Standard Abrasives Origin Country USA Extra Product InformationGet Inside Hard-To-Reach Areas: Our Standard Abrasives Unitized Mandrel is a tool attachment designed to hold a small Standard Abrasives Unitized WheelThe 1/4? shank diameter fits a 1/4? power tool collet or drill chuckAn integral part of the overall application, the mandrel helps operators effectively deburr and finish intricate or hard-to-reach areas Easy Attachment: Some Standard Abrasives Unitized Wheels come with Quick Change Attachment Styles: TS, TR and TPThis mandrel was especially designed for center hole (CH) unitized wheels without Quick Change attachmentsThe mandrel facilitates easy fastening of the abrasive wheel to the toolIt drives CH wheels with 2-3? diameters and a 3/8? center holeMade with steel, it is exceptionally durable and long-lasting, so it can stand up to repeated wear and be used during heavy-duty applications MaxRPM for this mandrel is 25,100, enabling operators to use it effectively with high-speed wheels and tools Our Standard Abrasives Mandrel is a helpful accessory for tackling hard-to-reach areas and getting inside tight spots on the workpiece.Product Information1/4? shank fits unitized wheel with 3/8? center holeAttaches easily to die grinder or rotary toolDesigned specifically for use with 2-3? Standard Abrasives 913 and 933 Unitized WheelsMade of steel for enhanced durability, longevity and toughnessMaxRPM 25,100Versatile mandrel comes with caps that accommodate wheel thicknesses from 1/8? to 1/2?