Specification Brand : AVERZELLA BulletPoint1 : 15-Piece Set of Masonry Drill Bits: Includes 15 pcs high-quality drill bits: 3/16" (5mm) x2, 1/4” (6mm) x8, 5/16" (8mm) x2, 3/8" (10mm) x2, 1/2" (12mm) x1. Covers 1/8 to 1/2 Inch sizes for versatile drilling needs. BulletPoint2 : Professional Multi-Material Drill Bits: Designed for ceramic, concrete, tile, metal, and masonry surfaces. The tungsten carbide tips ensure fast drilling and long-lasting durability, making them ideal for DIY projects and professional use. BulletPoint3 : Hex Shank & Dual U-Groove Design: Hex shank fits all standard drills securely, while the dual U-groove design reduces slippage and enhances stability during high-speed drilling. BulletPoint4 : Premium Carbide Construction: Hardened tungsten carbide tips resist heat and wear, ensuring precise drilling through tough materials like glass, concrete, tiles, metal, bricks, ceramic, wood, diamond, hardened stainless steel and etc. BulletPoint5 : Portable Drill Bit Set On The Go: Organized in a transparent shatter-resistant case protects bits from moisture and impacts. Fits in glove compartments or tool belts – ready for jobsites, garages, or home workshops. Color : Silver Configuration : configuration CustomerPackageType : Standard Packaging CuttingAngleString : 45.0 degrees ExternallyAssignedProductIdentifier : 6973357081494 ExternallyAssignedProductIdentifier1 : 794590609117 ExternallyAssignedProductIdentifier2 : 0794590609117 ExternallyAssignedProductIdentifier3 : 0024721008695 ExternallyAssignedProductIdentifier4 : 0024721535108 ExternallyAssignedProductIdentifier5 : 00024721008695 FinishType : Steel GpsrSafetyAttestation : 1 IncludedComponents : Masonry drill bits set x 1(pack of 15 pcs) , Portable Plastic Storage Case × 1 IncludedComponents1 : DRILL BIT 5/32" X 4" X 6" MASONRY IncludedComponents2 : DRILL BIT 5/32" X 4" X 6" MASONRY IncludedComponents3 : DRILL BIT 5/32" X 4" X 6" MASONRY IncludedComponents4 : DRILL BIT 5/32" X 4" X 6" MASONRY IncludedComponents5 : DRILL BIT 5/32" X 4" X 6" MASONRY ItemDisplayDimensions_Height : 10 centimeters ItemDisplayDimensions_Length : 10 centimeters ItemDisplayDimensions_Width : 12 centimeters ItemName : AVERZELLA 15-Piece Ceramic & Concrete Drill Bits Set (3/16 Inch to 1/2 Inch) - Hex Shank Tungsten Carbide Drill Bits for Tile, Metal, Masonry (1/8, 3/16, 1/2 Inch) with Portable Case ItemPackageDimensions_Height : 18.2118 centimeters ItemPackageDimensions_Length : 1.905 centimeters ItemPackageDimensions_Width : 18.1102 centimeters ItemPackageQuantity : 1 ItemShape : Cross Four-edge ,Hex Handle,u-type Groove Slot ItemTypeKeyword : masonry-drill-bit-sets Manufacturer : AVERZELLA Material : Carbide Material1 : Carbide Material2 : Carbon Steel Material3 : Alloy Steel ModelNumber : 22-0028 NumberOfFlutes : 1 NumberOfItems : 1 NumberOfPieces : 15 PackageLevel : unit PartNumber : 20230602 Pattern : Solid ProductDescription : Features: 1. Unique opening design, drilling sharp, easy to operate 2. Open hole, smooth, no broken edge, will not produce the phenomenon of tremor 3. Small incision resistance,Improve the opening speed,Easy to trim after slotting
Specifications: Diameter:10/25/40/55/70/80/100 mm Application:Glass, ceramic tile, marble, granite and other brittle hard materials
Operation How to keep the drill bit on target (1) You can start drilling at an angle, with the edge of the drill bit making a C slot and then getting the drill bit up to vertical. (2) You can manually guide the drill bit with wet sponge (3) You can make your own guide out of plywood - plastic or even a card board. All you need is to keep the drill bit in place until it makes the initial marks. How to drill correctly: 1.Firstly, mark the point where you want to drill the hole; 2.Next, fix the drill at the angle of 45°to make a drilling trace at a high rotating speed;and add water during the drilling process; 3.Then drill vertically from the other side of the drilling trace at a slow speed to prevent breakthrough. How to keep the tool cool a- You can build a mini water dam around the hole with plumbers putty. b- You can choose to spray water on the drill bit. c- You can use running water to cool the drill bit.
Note: 1. Not suitable for concrete or concrete deeper than 1/2 inch. 2. If you smell a burning odor, step back! Too fast or stressed. 3. Water should be used as a lubricant and coolant when drilling, which will greatly extend the service life of the drill.
Package include: 7Pcs Hole Saw Drill Bits User Manual