MILWAUKEE 49-56-0511 Milwaukee® 1/2" Diamond Max™ Hole Saw BitMilwaukee's Diamond Max Hole Saw Bits deliver up to 20X longer life with unmatched cuts in porcelain. Diamond Max Hole Saws offer best in class performance with higher grade diamonds and superior retention. Features Maximum wear resistance to tackle the most demanding applications. The improved diamond grit delivers faster cutting and quickly grips into material for clean, easy cuts. Designed for more cutting with less clogging. Diamond Max: Greater