The PorcelainPlus Speedbit was specifically designed for drilling through hard surfaces such as porcelain tile, marble, granite and quartz along with ceramic tile, glass and mirrors. Its speed and durability distinguishes itself from other standard bits used on these surfaces.
With a specially formulated mix of metals and superior designed carbide tip, Porcelain drill bit makes your installations quicker and easier, therefore, more profitable.
Porcelaindrillbit 
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