Diamond Core Bit Hole Saw Drill Bit Cutter Tool Cuts Tile Marble Stone ø6mm75mm. Product Name : Hole Saw Drill Bit. Diameter: 6mm 8mm 10mm 12mm 14mm 16mm 18mm 20mm 22mm 25mm 28mm. 30mm 32mm 35mm 38mm 40mm 42mm 45mm 50mm 55mm 60mm 65mm 70mm 75mm. Warm Reminder: The Picture Is For Reference Only, And The Size, Color, Printing, Etc. Made Of High Quality Diamond Powder Plating, High Temperature Quenching, High Hardness, Sharpness And Durability. Slotting Design, Sharp Cutter Head, Small Resistance To Open Holes, Conducive To Chip Removal, Easier To Operate, Fast Cutting, Opening Holes Neatly Without Burrs. Scientific Design Of Chip Removal Holes, The Whole Forging Of The Drilling Body Makes The Drilling Body More Stable, No Vibration Phenomenon. Adopting M10 Screw Port, 10mm Screw Port Can Be Installed In The General Angle Grinder With A Rod For Electric Drills, Table Drills And So On. It Can Be Used For Drilling Of Hard And Brittle Materials Such As Marble, Ceramics, Cement, Tiles, Etc. The Holes Are Opened Neatly And Smoothly Without Broken Edges, Which Produces The Phenomenon Of Tremor. Small Cutting Resistance Improves The Speed Of Drilling, Easy To Decorate After Grooving, And Easy Chip Removal. Add Coolant Or Water To Prolong The Service Life Of The Drilling Process, When You First Start Drilling, You Should Slowly Contact The Object, Not Impact The Work Speed Should Be Low (The Bigger The Hole Opener, The Lower The Speed Should Be) When You Are About To Drill Through, Pay Attention To Slowing Down The Speed. Please Stop The Work When The Chip Removal Is Not Ideal, Clean Up And Then Work Again. If You Need a Large Quantity or Other Quantity, We Can Send the Goods According to Your Requirements. Thank You Very Much. If You Need Other Sizes, We Can Offer Customization. Please Contact Our Customer Service for Details. Package Included: As per Your Choice! It’s Quick, Easy, and Safe. Please List Your Special Requests Color, Packages, Etc. We Sincerely Hope That You Can Receive the Goods As Soon As Possible. For the Functional Products in Our Store, We Make Sure the Functions Are the Same As Description. But the Actual Color and Shape May Be a Little Different from the Pictures Due to the Technical Improvement and Manufacturing Variance. We Care About Our Valued Buyers, If You Have Any Questions Our Customer Service Representatives Will Be Very Happy to Help You. We Try Our Best to Answer Your Emails As Soon As Possible. However, Due to the High Number of Emails We Receive Every Day and the Time Zone Difference, We May Not Be Able to Reply to Your Emails Immediately.