Diamond Finger Bit is widely used in the stone processing industry. It has high efficiency and accuracy that helps to save time and improve productivity. The unique design of the Diamond Finger Bit makes it more effective in cooling and easy for dust removal. This reduces the risk of overheating and prolongs the lifespan of the tool.
One of the outstanding features of Diamond Finger Bit is its versatility. It can be used on many different machines to process various materials such as granite, marble, and ceramic tiles. This feature makes it more convenient for users who deal with different types of stones, and it reduces the cost of buying a different tool for each material.
The Diamond Finger Bit has high-frequency welded segments on a steel base, meaning that it is durable and can withstand heavy usage. It can produce different shapes accurately, which is vital in the stone processing industry, where precision is critical. The accuracy of the Diamond Finger Bit reduces human error and ensures that the end product is of high quality.
Another unique application of the Diamond Finger Bit is mixed material processing. This is where different materials are processed at the same time, which saves time and resources. Processing stones using a Diamond Finger Bit creates a better finish, which is useful in industries like construction, home décor, and furniture manufacturing. The tool can be used for trimming slabs, drilling holes, and creating detailed work like edge profiling.
|
Specification |
Segment Spec. |
Segment No. |
Connection |
Grit |
|
D20*40 |
40*5*4.5 |
4 |
G1/2" |
Corse |
|
D20*45 |
45*5*4.5 |
4 |
||
|
D20*50 |
50*5*4.5 |
4 |
||
|
D25*40 |
40*5*4.5 |
5 |
||
|
D25*45 |
45*5*4.5 |
5 |
||
|
D25*50 |
50*5*4.5 |
5 |
Note
The above specification is only for Reference, other or special specifications can be ordered by the customer.
Diamond Finger Bit – Precision Milling & Shaping Tool for Stone, Tile & Concrete
Diamond Finger Bits are specialized diamond‑impregnated milling and shaping tools designed for enlarging, shaping, grinding, profiling, and finishing holes and edges in stone, tile, porcelain, marble, granite, and concrete. Unlike conventional drill bits, finger bits provide versatile multi-functional performance, especially for adjusting existing holes, creating cutouts, or smoothing internal contours.
These bits are ideal for contractors, tile setters, stone fabricators, plumbers, electricians, and general construction professionals who require precise, clean material removal.
Key Features of Diamond Finger Bits
Multi‑Functional Tool: Perform drilling, enlarging, grinding, and shaping in one bit, reducing the need for multiple tools.
Industrial-Grade Diamond Abrasives: Vacuum‑brazed diamonds provide fast cutting, excellent wear resistance, and long service life on hard materials.
Threaded Shank Compatibility: Common threads such as 5/8″‑11 and M14 fit most angle grinders, rotary tools, and handheld drills.
Wet or Dry Operation: Suitable for both wet and dry cutting, depending on material and dust control requirements.
Precise Material Removal: Smoothly enlarge holes, create circular cutouts, and shape internal contours without cracking or chipping surrounding material.
How Diamond Finger Bits Work
Diamond finger bits feature diamond abrasives bonded to the bit surface. When rotated at high speed, these diamonds grind material away rather than chip it, allowing the bit to:
Enlarge existing holes cleanly
Shape contours and edges
Smooth interior surfaces
Create precise circular cutouts
They are especially effective where standard core bits or twist drills cannot reach, or where precision shaping is required.
Applications of Diamond Finger Bits
Diamond finger bits are widely used for:
Enlarging and finishing holes in stone, tile, and concrete
Shaping stone edges for decorative or architectural details
Grinding and smoothing interior contours of tiles, slabs, and countertops
Creating precise sink cutouts in stone and engineered materials
Trimming and profiling edges of porcelain, marble, granite, and ceramic
Countertop fabrication, plumbing, and electrical installations
They can be used with angle grinders, rotary tools, and CNC stone processing machines for professional and industrial applications.
Sizes & Compatibility
Diamond finger bits are available in multiple sizes for different hole diameters and shaping requirements:
Common diameters: 10 mm, 20 mm, 25 mm, 35 mm, 50 mm, 75 mm
Thread types: 5/8″‑11 standard angle grinder thread or M14 for European tools
Compatible with handheld drills, angle grinders, and CNC stone machines
This flexibility allows for small precision tasks to larger interior shaping jobs.
Material Compatibility
Diamond finger bits can work on:
Porcelain and ceramic tiles
Natural stone – marble, limestone, granite
Engineered stones and countertops
Concrete and masonry surfaces
Their diamond abrasives make them highly effective on hard, dense materials where conventional bits would wear quickly.
Benefits of Using Diamond Finger Bits
Improved Precision: Enlarge or create holes without damaging surrounding material
Versatile Performance: Combines drilling, shaping, and grinding in a single tool
Extended Tool Life: High-quality diamonds and vacuum-brazed construction ensure long-term durability
Clean Cuts: Minimal chipping and smooth finish compared to standard drill bits
Cost-Effective: Reduces the need for multiple specialized tools
Tips for Optimal Use
Use progressive grit or pad sequences if smoothing or polishing is required
Wet cutting helps reduce dust and prolongs tool life
Always ensure the bit is compatible with your tool (thread type and size)
Maintain steady pressure; avoid forcing the bit to prevent overheating or excessive wear
Packing, Storage, Handling and Transportation
Diamond Finger Bit if small quantity pack in paper box, if large quantity, they are packed in polywood case before delivery.
After sales service team
Technical Team
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