qmdiamondtool
Crown Segment Wet Diamond Core Drill Bit
Diamond Core Drill Bit , also known as a Diamond Hole Saw , specifically designed for drilling large-diameter circular holes in hard materials such as granite, marble, tiles, and concrete. The set includes core drill bits of various diameters, along with extension rods and adapters, allowing for flexible adaptation to different hole depths and sizes. The core component—the drill bit—features a high-strength steel body with diamond-impregnated or sintered cutting segments at the front, enabling efficient and precise core drilling through rotational cutting.
Technical Specifications
| Diameter(inch) | Diameter(mm) | Segment Height(mm) | Total Length(mm) | Thread Type |
| 0.24 | 6 | 10 | 85/100 | Ø10, Ø12, M14, 5/8"-11, 1/2"Gas |
| 0.32 | 8 | 10 | ||
| 0.40 | 10 | 10 | ||
| 048 | 12 | 10 | ||
| 0.80 | 20 | 10 | ||
| 1.00 | 25 | 10 | ||
| 1.20 | 30 | 10 | ||
| 1.30 | 32 | 10 | ||
| 1.40 | 35 | 10 | ||
| 1.50 | 38 | 10 | ||
| 1.60 | 40 | 10 | ||
| 2.00 | 50 | 10 |
Other specifications are available upan request.
Key Characteristics
🔹Efficient Core Drilling: Utilizing diamond as the cutting material, it easily penetrates high-hardness, wear-resistant stone and concrete, offering fast drilling speed and smooth hole walls.
🔹Modular and Versatile: The set contains core drill bits and extension rods of multiple specifications, allowing users to freely combine them according to hole diameter and depth requirements. One set can meet various operational needs.
🔹Chip Removal and Cooling Design: The drill bit body features chip removal slots or holes, facilitating the expulsion of debris during drilling. It can also be used with water or air cooling to effectively reduce bit temperature and extend service life.
🔹Robust and Durable: The steel body is heat-treated, providing excellent rigidity and torsional resistance, capable of withstanding high rotational speeds and torque to ensure stability and safety during drilling.
Usage Scenarios
🔹Stone Fabrication: Drilling sink holes, faucet holes, and drain holes in stone countertops, washbasins, stair treads, etc.
🔹Construction and Renovation: Drilling pipe holes, conduit holes, and ventilation holes in concrete walls, floors, or tiles.
🔹Glass and Ceramic Processing: Suitable for drilling installation holes in thick glass and ceramic tiles.
🔹Industrial Installation: Drilling anchor bolt holes and sensor holes in large equipment foundations, bridges, tunnels, and other concrete structures.
Key Advantages
Why Choose Our Diamond Tools?
🔹 Advanced Diamond Formula
Optimized segment formula ensures faster cutting and longer lifespan.
🔹 High Strength Bonding
Hot-pressed sintering technology improves segment durability.
🔹 Smooth Cutting Performance
No chipping, no burning, stable cutting experience.
🔹 Wide Compatibility
Suitable for various machines and working conditions.
🔹Our Manufacturing Strength
• Advanced sintering technology
• Strict quality inspection system
• Over 10 years of production experience
• Professional R&D team
👉 All products are tested before delivery.
Payment item & shipping
🔹 Payment items?
Bank T/T,L/C,Western Union,Paypal ect
🔹 Delivery method?
• Trail order or testing order with light weight(<45kgs), we recommend Express Service.
• Normal order weighting over 45kgs, we recommend Air transportation.
• For large orders or heavy weights, we recommend sea transportation.
Frequently Asked Questions (FAQ)
🔹Q1:What material is your product ?
Our products are made from diamond , we have sintering, electroplating , and brazing technology.
🔹 Q2: How will you guarantee the quality is eligible ?
We have 3 times to examine the quality of products , first : pre-production , second : post-production , third : before delivery.So you needn't to worry about it.
🔹Q3: Can you provide OEM service?
Yes, we support OEM and customized packaging.
🔹 Q4: What is your MOQ?
Usually 3 pcs, but flexible for trial orders.
🔹Q5: What is the delivery time?
7–15 days depending on quantity and styles.
🔹 Q6: How could I complete an order ?
• Sending your inquiry/requirements about products.
• We confirm your inquiry.
• Discuss with the details of products.
• you pay us down payment , then we begin to produce stuff .
• When you receive all the goods , you can check it first, if no question , then the order is finished , if there are some questions about quality , then we can deal with it together , we are responsible for the after sales.
Ready to get the best cutting performance?
