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【High quality material】The cutter head is made of high quality cemented carbide and laser cut serrated design, double U-groove design, which can improve the drilling performance and dust removal effect.
【Product Upgrade】 Four-blade serration design reduces wobble by 30% and enables clean drilling in brittle materials such as ceramics and marble
【Size】Masonry Drill Bit Set includes 5 different sizes: 1/4",5/16",3/8",1/2",9/16", also comes with a dust cover
【Wide range of applications】Masonry Drill Bit Set is suitable for glass, ceramics, tiles, mirrors, flower pots, wood, porcelain, brick walls, marble, thin iron sheets, etc.; ideal for DIY projects, home renovation, construction work or professional contracting work involving masonry surfaces
【Usage Tips】Use low rotational speed and stable down pressure to improve cutting efficiency and reduce the wear of alloy drill bits. For high hardness alloys, intermittent water cooling is recommended during high temperature operations to effectively extend bit life