The 15PCS diamond hole saw kit combination of drills, chamfer bit, finger bit, diamond saw blades and shank adapters makes the work more efficient , including 9pcs Tile Hole Saw 1/4"(6mm), 1/4"(6mm), 5/16"(8mm), 4/5"(20mm), 1"(25mm), 1-3/8"(35mm), 2"(51mm),3"(76mm), 4"(102mm) ; 1pcs 4/5"(20mm) Finger Milling Bit, 1pcs 2"5/8-11 Beveling Chamfer Bit, 1pcs 5/8-11 Hex Shank Adapter, 1pcs 5/8-11 SDS Shank Adapter, 2pcs 4.5"(115mm) Diamond Grinding Wheel. One set of diamond hole saw kit allows you to drill, chamfer, mill, ream holes in multiple sizes, and cut tiles, grind edges. If you want to use it on an electric or impact drill, use the SDS or HEX Shank Adapter
I. Core Tile Hole Saws (9 Sizes, Including Duplicate Specifications) – Primary Drilling Tools
1. 1/4 Inch (6mm) – Micro Precision Drilling (2-Piece Set, for High-Frequency Use)
Application Scenarios:Mounting holes for small sensors (temperature-humidity sensors, door magnetic sensors, smoke alarm bases) on wall tiles (2-piece backup to avoid frequent replacements);
Cable routing holes for micro wires (LED strip wires, small appliance power cords, smart device signal cables) on kitchen backsplash tiles;
Pre-drilled holes for small hooks, towel rack bases, or soap dishes on bathroom tiles (compatible with M4/M5 screws);
Positioning holes for fixing small awnings or mini clothes drying rack brackets on balcony tiles;
Mounting holes for small hardware accessories (e.g., countertop splash guard fixing screws, sink corner fixing holes) on stone countertops (marble, quartz).
Features: Ultra-small aperture and high precision; 2-piece configuration meets batch drilling or tool backup needs, suitable for scenarios requiring hidden drilling traces.2. 5/16 Inch (8mm) – Small Hardware/Conduit Drilling (2-Piece Set, for High-Frequency Installation)
Application Scenarios:Mounting holes for shower hose holders, handheld shower brackets, or toilet brush bases on bathroom tiles (2-piece set for dual bathrooms or batch construction);
Water pipe threading holes for small faucets (water purification faucets, direct drinking faucets) on kitchen tiles;
Expansion bolt holes for small storage racks, spice racks, or knife holders on wall tiles (compatible with 6mm expansion tubes);
Micro signal cable (network cables, surveillance cables, access control power cords) drilling on tile walls in commercial projects;
Pre-drilled holes for small hinges or fixing clips on glass partitions (bathroom glass, balcony glass).
Features: High versatility; 2-piece configuration improves construction efficiency for home/commercial projects, avoiding work stoppages due to tool wear.3. 4/5 Inch (20mm) – Medium Conduit/Hardware Drilling
Application Scenarios:Hot and cold water inlet holes for shower mixers on bathroom tiles (compatible with 15mm pipe fittings, with reserved space for valve installation);
Gas hose threading holes for built-in gas stoves on kitchen tiles (compatible with 16mm gas hoses);
Expansion bolt holes for medium storage racks or microwave brackets on wall tiles (compatible with 10mm expansion tubes);
Weak current conduit (20mm pipes) or small drainage pipe drilling on tile walls in commercial projects;
Drainage pipe holes for water purifiers or small garbage disposal unit interfaces on stone countertops (kitchen countertops).4. 1 Inch (25mm) – Medium-Large Conduit/Equipment Installation Drilling
Application Scenarios:Wall-penetrating holes for washing machine water inlet/outlet pipes on balcony tiles (compatible with 20mm water pipes);
Small conduit holes for built-in dishwashers on kitchen tiles (compatible with 25mm water pipes);
Strong current conduit (25mm pipes) or air conditioning condensate pipe drilling on tile walls in commercial projects;
Reserved holes for small light fixtures or surveillance cameras on outdoor tile walls;
Wall-penetrating holes for decorative small metal pipes or cable sleeves on stone feature walls.5. 1-3/8 Inches (35mm) – Large-Size Hardware/Faucet Drilling
Application Scenarios:Main mounting holes for basin faucets or bathtub faucets on bathroom tiles (compatible with single-hole faucet bodies or valve cores);
Overflow pipe holes for built-in kitchen sinks (compatible with large-size overflow pipes);
Fixing holes for medium equipment bases (e.g., small fans, water dispensers) on wall tiles;
Main mounting holes for sensor faucets on bathroom tiles in hotels or office buildings;
Reserved holes for faucets on glass countertops (e.g., bar glass).6. 2 Inches (51mm) – Extra-Large Aperture/Pipe Wall-Penetrating Drilling
Application Scenarios:Mounting holes for large shower heads on bathroom tiles (compatible with 32mm pipe fittings);
Drainage holes for built-in kitchen sinks on kitchen tiles (compatible with 50mm drainage pipes);
Drainage pipe (50mm pipes) or ventilation duct branch drilling on tile walls in commercial projects;
Water inlet/outlet holes for water purifier storage buckets or small water tanks on balcony or outdoor tiles;
Mounting holes for decorative circular hangings or small air vents on stone walls.7. 3 Inches (76mm) – Extra-Large Aperture/Equipment Interface Drilling
Application Scenarios:Drainage holes for large basins (e.g., double basins) on bathroom tiles (compatible with 70mm drainage pipes);
Feed port holes for large garbage disposal units on kitchen tiles (compatible with countertop reserved holes);
Large ventilation duct (75mm pipes) or weak current cable tray main drilling on tile walls in commercial projects;
Fixing holes for decorative mirrors or circular display racks on tile walls in commercial spaces (e.g., restaurants, hotels);
Large cable interface drilling on equipment panels (tile/stone material) in industrial scenarios.8. 4 Inches (102mm) – Super-Large Aperture/Special Scenarios
Application Scenarios:Large drainage pipe (100mm pipes) or bathroom exhaust duct drilling on tile walls in commercial projects;
Drainage holes for large built-in kitchen sinks on kitchen tiles (compatible with 90mm drainage pipes);
Reserved holes for floor lamps or lawn lamps on outdoor tile floors (compatible with large lamp bases);
Fixing holes for large decorative paintings or circular signs on tile walls in commercial spaces;
Precision drilling of large circular decorative holes or equipment mounting holes in stone processing.II. Application Scenarios of Auxiliary Tools
1. 4/5 Inch (20mm) Finger Milling Cutter
Core Function: Slot milling, edge shaping, aperture enlargement, and irregular groove processing (non-penetrating) on hard materials such as tiles, stone, and glass.
Application Scenarios:Edge chamfering of tile holes (to avoid cuts from sharp edges, especially for exposed holes);
Groove milling on the edge of sinks in stone countertops (e.g., kitchen countertops) to fit sink mounting clips;
Surface texture processing of glass crafts or tile decorative paintings (milling shallow grooves for decoration);
Groove milling around reserved holes for switch panels or sockets on tile walls in commercial projects (to fit panel frames);
Correcting hole size deviations (e.g., slightly expanding undersized holes to precise dimensions via milling).2. 2 Inch (5/8-11 Thread) Chamfering Drill Bit
Core Function: Chamfers hole edges after drilling to remove burrs and sharp edges, facilitating conduit threading or hardware installation and preventing material edge chipping.
Application Scenarios:Chamfering of wall-penetrating holes for water pipes or electrical conduits (to prevent pipe insulation from being cut by sharp hole edges);
Chamfering of mounting holes for hardware accessories (e.g., expansion bolts, bolts) to ensure tight fitting against walls and uniform force distribution;
Chamfering of glass or stone holes (to prevent edge chipping and improve aesthetics);
Chamfering of faucet or valve mounting holes (to facilitate gasket fitting and prevent water leakage);
Uniform chamfering of numerous holes in commercial projects (to improve construction efficiency and safety).3. 2 Pieces of 4.5 Inch (115mm) Diamond Grinding Wheels
Core Function: Cutting, grinding, and edge trimming of hard materials (tiles, stone, glass, metal), especially suitable for edge processing of thick or hard materials.
Application Scenarios:Edge grinding of tile holes (removing residual burrs after chamfering for smoother hole edges);
Edge grinding and polishing of cut stone countertops (e.g., kitchen countertops);
Irregular cutting (e.g., curved or beveled cuts) of glass partitions or tile decorative panels;
Light grinding of metal accessories (e.g., hardware brackets, pipe fittings) to remove rust or sharp edges;
Material preprocessing (cutting excess parts, trimming for alignment) before large-area tile wall installation in commercial projects.
Features: 2-piece configuration meets batch grinding or backup needs; diamond material is compatible with various hard materials and offers high durability.III. Application Scenarios of Adapters (5/8"-11 Interface)
1. 5/8"-11 Hex Shank Adapter
Application Scenarios:Connects to hex chuck electric drills (e.g., hex quick-change chucks of ordinary pistol drills or hammer drills), allowing direct insertion to fix hole saws, milling cutters, or chamfering drill bits without additional conversion;
Enables quick switching between tools of different sizes during home decoration (e.g., from hole saw to chamfering drill bit) with easy plug-and-play operation, improving work efficiency;
Compatible with small portable electric drills, suitable for construction in narrow indoor spaces (e.g., bathroom or kitchen corners).2. 5/8"-11 SDS Shank Adapter
Application Scenarios:Connects to SDS shank rotary hammers/hammer drills (e.g., SDS-plus chucks of professional rotary hammers such as Bosch or DeWalt);
Enhances drilling efficiency and reduces tool jamming when drilling hard materials (polished glazed tiles, vitrified tiles, sintered stone) or thick plates (≥12mm tiles, 20mm stone) by utilizing the hammer function of rotary hammers;
Adapts to professional power tools for large-area hole drilling in commercial projects (e.g., hotel or office building renovation) to increase construction speed;
Improves tool stability for deep hole drilling or chamfering of ultra-hard materials (e.g., artificial quartz stone, sintered rock slabs).IV. Supplementary Usage Recommendations
Material Compatibility:
Ordinary tiles (glazed tiles, antique tiles): All hole saws and milling cutters can be used; use water cooling during drilling.
Hard tiles (polished glazed tiles, sintered stone): Recommended to use SDS shank rotary hammer + adapter with impact mode and continuous cooling.
Glass, stone (marble, quartz): Drill/grind at low speed; use diamond grinding wheels for edge trimming and avoid excessive force.
Metal materials: Only use diamond grinding wheels for light grinding; hole saws are not recommended for thick metal drilling.
Scenario Expansion:
Home decoration: Covers the entire process of plumbing/electrical renovation, bathroom/kitchen installation, balcony decoration, feature wall production, and stone countertop processing.
Commercial construction: Suitable for renovation projects of hotels, office buildings, and shopping malls, as well as plumbing/electrical and equipment installation in hospitals and schools.
Processing scenarios: Precision drilling, cutting, and grinding in small stone processing plants or glass craft workshops.
Maintenance scenarios: Repair of damaged tiles/stone in residential or commercial spaces, and correction of equipment mounting holes.
Tool Matching Tips:
Integrated drilling + chamfering + grinding: Drill with a hole saw → remove burrs with a chamfering drill bit → polish with a diamond grinding wheel (suitable for exposed holes such as faucet mounting holes).
Batch construction: 2-piece small-size hole saws (6mm, 8mm) + dual adapters, compatible with different electric drills to avoid tool idleness.
Special materials: For ultra-hard materials (sintered stone, granite), first drill a pilot hole with a small-size hole saw, then enlarge it with the corresponding size hole saw, and use an SDS adapter to improve stability.
Safety Notes:
Wear safety goggles (to prevent debris splashing), gloves (anti-slip and anti-cut), and a mask (to prevent dust) during operation.
Avoid water contact with the electric drill motor during water cooling to prevent short circuits.
When the diamond grinding wheel rotates at high speed, avoid contact with non-processing surfaces to prevent tool cracking or material damage.