1、The hole saw can be used on table drills, hand drills and drilling machines but not on impact drills 2、Suitable for all kinds of stone, ceramics, vitrified brick, glass, etc. You should always add water to cool down the holes 3、Advanced powder platinum production technology with vacuum sintering, greatly increasing the service life 4、The segmented design of the drill bit has a small cutting resistance and is good for chip removal. 5、Universal triangular drill shank can effectively prevent slipping during drilling and withstands greater torsion 6、All specifications have chip removal holes, and the oblong design is more conducive to chip discharge. 7、Position at an oblique angle of 45° first, and drill the hole vertically(note that the speed should not be too fast, and the speed should be slowly operated at about 800-1000 rpm) <div class="wang-edit-text">Item Type: Hole Saw Drill Bit Optional Style: 40mm, 45mm, 50mm, 55mm, 60mm<table border="0" cellpadding="0" cellspacing="0" width="506" height="126"> <tbody><tr height="36"> <td class="et2" height="36" width="120" x:str="">Opener specifications</td> <td class="et2" width="107" x:str="">Total product length</td> <td class="et2" width="82" x:str="">Handle length</td> <td class="et2" width="103" x:str="">Handle diameter</td> <td class="et2" width="94" x:str="">Working depth</td> </tr> <tr height="18"> <td class="et3" height="18" x:str="">40mm / 1.6in</td> <td class="et3" x:str="">83mm / 3.3in</td> <td class="et3" x:str="">25mm / 1in</td> <td class="et3" x:str="">9.4mm / 0.4in</td> <td class="et3" x:str="">58mm / 2.3in</td> </tr> <tr height="18"> <td class="et3" height="18" x:str="">45mm / 1.8in</td> <td class="et3" x:str="">83mm / 3.3in</td> <td class="et3" x:str="">25mm / 1in</td> <td class="et3" x:str="">9.4mm / 0.4in</td> <td class="et3" x:str="">58mm / 2.3in</td> </tr> <tr height="18"> <td class="et3" height="18" x:str="">50mm / 2in</td> <td class="et3" x:str="">84mm / 3.3in</td> <td class="et3" x:str="">25mm / 1in</td> <td class="et3" x:str="">9.4mm / 0.4in</td> <td class="et3" x:str="">59mm / 2.3in</td> </tr> <tr height="18"> <td class="et3" height="18" x:str="">55mm / 2.2in</td> <td class="et3" x:str="">84mm / 3.3in</td> <td class="et3" x:str="">25mm / 1in</td> <td class="et3" x:str="">9.4mm / 0.4in</td> <td class="et3" x:str="">59mm / 2.3in</td> </tr> <tr height="18"> <td class="et3" height="18" x:str="">60mm / 2.4in</td> <td class="et3" x:str="">80mm / 3.1in</td> <td class="et3" x:str="">25mm / 1in</td> <td class="et3" x:str="">9.4mm / 0.8in</td> <td class="et3" x:str="">59mm / 2.3in</td> </tr> </tbody></table><style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style> 1 x Hole Saw Drill Bit