qmdiamondtool
CNC Diamond Half Ball Finger Bit For Granite Stone Drilling
CNC Diamond Half Ball Finger Bits, also known as "ball nose end mills" or "finger bits". These are precision carving and shaping tools specifically designed for stone CNC machining centers. The working end is hemispherical and coated with diamond abrasives bonded to a metal shank via sintering. They are used for 3D surface carving, chamfering, grooving, and edge profiling on hard stones like granite, marble, and quartz.
Technical Specifications
| Diameter(mm) | Segment Height(mm) | Inner Hole(mm) |
| 12 | R6 | 1/2"Gas |
| 16 | R8 |
Other specifications are available upan request.
Key Characteristics
🔹High-Precision Shaping: The hemispherical tip allows for accurate creation of complex 3D surfaces such as arcs, grooves, and waves, meeting the demands of high-end stone decoration.
🔹High Wear Resistance: Made with high-quality diamond abrasives and metal bonds, they offer excellent durability and long service life, suitable for continuous operation.
🔹Efficient Chip Removal: The tool head often features spiral or segmented structures that facilitate rapid swarf removal during high-speed rotation, reducing clogging and improving efficiency.
🔹Strong Compatibility: Standard threaded interfaces (e.g., 1/2"Gas) are compatible with mainstream stone CNC machines, enabling easy installation.
🔹Multi-Functionality: Suitable not only for carving but also for chamfering, grooving, and trimming, offering versatility and reducing tooling costs.
Usage Scenarios
🔹Stone Countertop Fabrication: Used for edge profiling, rounding, and grooving on kitchen and bathroom countertops made of marble or quartz.
🔹Artistic Carving: Ideal for creating stone reliefs, patterns, and lettering, enabling intricate 3D designs.
🔹Architectural Cladding & Decoration: Used to shape complex contours and decorative moldings on stone panels, columns, and railings.
🔹Monument & Tombstone Making: Used to carve inscriptions, patterns, and decorative curves on tombstones, enhancing product value.
🔹Custom Stone Fabrication: Suitable for processing various custom stone components such as curved panels, cylinders, and spheres.
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?
