qmdiamondtool
Diamond CNC Finger Cutting Bits Granite Marble for Countertop Sink Hole Cutting
Technical Specifications
| Diameter(mm) | Segment Height(mm) | Total Length(mm) | Thread Type |
| 20 | 35/40/50 | 100/200 | 1/2"Gas |
| 22 | 35/40/50 | 100/200 | 1/2"Gas |
Other specifications are available upan request.
Key Characteristics
🔹High-Precision Machining: Designed for CNC machines, enabling micron-level accuracy to ensure consistency and aesthetics of stone edges.
🔹Robust and Durable: The combination of high-quality diamond particles and the metal matrix provides extremely high wear resistance and impact strength, suitable for prolonged continuous operation.
🔹Efficient Chip Evacuation: The chip slots on the side or special structural designs help quickly remove stone dust during processing, reducing frictional heat and extending tool life.
🔹Standardized Interface: Uses a standard 1/2"Gasthreaded interface, compatible with the spindles of most stone CNC machining centers on the market.
🔹Versatility: By switching between finger bits of different shapes (straight, ball-end, tapered, etc.), various complex processing tasks can be completed on the same machine.
Usage Scenarios
🔹Stone Countertop Fabrication: Used for milling complex profiles on the edges of kitchen countertops, vanities, and bars, such as creating Roman ogee, large round-over, or double bullnose edges.
🔹Tombstone and Monument Carving: Fine text engraving, pattern milling, and contour cutting on granite tombstones.
🔹Architectural Decorative Components: Processing lines and profiles of building stones like stair treads, window sills, and door casings.
🔹Mold Manufacturing: Used for making stone molds or replica molds that require high-precision contour replication.
🔹Irregular Stone Processing: Customized milling and profiling of non-standard shaped stones.
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?