This diamond drill bit set includes three premium 1/4" DIAMOND PLUS™ wet and dry diamond drill bits. These diamond grit edge drills and holesaws have been specifically developed for professionals that need to drill in extremely hard materials such as porcelain, gres, quarry tiles, cast iron or fibreglass where it's increasingly difficult to drill with conventional holesaws. These holesaws guarantee excellent performance and superior life time even in the hardest of materials. What sets Milwaukee DIAMOND PLUS™ drills and holesaws apart from the crowd is that they only require a limited water supply unlike coventional diamond drills that require a continuous flow of water. You simply dip the drill bit into water at the start of each hole to be cut ad thereafter every five second cut duration.
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