•Cratex Wheel Mandrel No. 1342 has a 1/4 shank and is designed for 1/4 center hole wheels up to 3 diameter by 1/2 thick or less
•Maximum Safe Speeds based on 1/2 overhang are: 1-1/2 diameter-15,000; 2-10,500; 2-1/2-8,300; 3-7,000
•These speeds are based on 5,500 Surface Feet Per Minute.