The EXFEIN Diamond Tile Hole Saw Kit is a diamond drilling set for tiled and stone surfaces such as porcelain tile, ceramic tile, marble, and granite. It combines core drill bits with a finger bit, a chamfer bit, an adapter, and tile blades, so it covers several common steps in hole-making and edge finishing rather than only one cutting task.
Quick Overview
This kit is built around diamond-tipped accessories used for drilling holes, enlarging openings, trimming edges, and working on tile surfaces. The main pieces are six diamond core drill bits in 6 mm, 8 mm, 10 mm, 35 mm, 50 mm, and 65 mm sizes, plus a 1-inch diamond core drill bit finger bit, a 3/8-inch diamond finger bit, a 2-inch diamond chamfer bit, a 5/8″-11 thread to hex adapter, and two diamond blades for tile.
It is meant for use on a 5/8-inch arbor angle grinder. If used with a hand drill, the included hex adapter is used, and the drilling speed should not go below 2000 RPM. Impact drill mode should not be used.
| Product Type | Diamond tile hole saw kit |
|---|---|
| Brand | EXFEIN |
| Included Bits | 6 mm, 8 mm, 10 mm, 35 mm, 50 mm, 65 mm core drill bits; 1-inch finger bit; 3/8-inch finger bit; 2-inch chamfer bit |
| Included Adapter | 5/8″-11 thread to hex adapter |
| Additional Items | 2 diamond blades for tile |
| Application | Porcelain tile, ceramic tile, marble, granite |
| Use Mode | Dry or wet use |
| Compatible Machine | 5/8-inch arbor angle grinder |
What This Kit Is Used For
The EXFEIN Diamond Tile Hole Saw Kit is intended for tasks where a clean opening or shaped edge is needed in hard surface materials. The core drill bits are used for drilling holes. The finger bits are used for enlarging holes. The chamfer bit is used for trimming holes.
That combination makes the kit more versatile than a single-size hole saw. In practical terms, it can cover several steps that may come up in tile work, such as creating openings for fixtures, adjusting hole size, or smoothing the edge around an opening after drilling.
Included Tools and What They Do
Diamond core drill bits
The kit includes six core drill bits in different sizes. These are the main cutting tools in the set and are used for making holes in tile and stone surfaces. Different sizes can be useful when a project calls for different openings, such as a smaller pipe hole or a wider cutout.
Finger bits
The kit includes two finger bits. These are not for initial drilling. Instead, they are used for enlarging or refining holes after the first cut has been made. That can be helpful when a hole needs to be adjusted slightly or cleaned up after drilling.
Chamfer bit
The 2-inch chamfer bit is designed for trimming holes. A chamfered edge is a beveled edge, so this tool is useful when the opening needs a smoother, angled finish rather than a sharp cut edge.
Tile blades and adapter
The set also includes two diamond blades for tile and a 5/8″-11 thread to hex adapter. The adapter expands how the kit can be used with compatible hand drill setups, while the tile blades add cutting capability beyond the hole-making tools.
Materials and Construction Details
The cutting pieces use vacuum brazed technology, which combines a steel matrix with diamonds. In everyday terms, that construction is meant to hold diamond abrasive material securely on the tool body while supporting cutting work on hard surfaces.
The drill bits also use lightning teeth with wide chip removal slots. Those slots are meant to help dust and debris move away from the cutting area more easily. When debris clears faster, the tool is less likely to clog during use, which can matter during tile work where fine dust tends to build up quickly.
Using the Kit in Practice
This kit is set up for dry or wet use. Wet drilling is often used when reducing debris and extending tool life is important. Dry use may be more convenient in some job conditions, but it can create more dust and heat, so the work environment and surface material should guide the choice.
When used on a hand drill, the included hex adapter is required, and the speed should stay above 2000 RPM. The impact drill mode should not be used. That matters because this type of bit is made for rotary cutting rather than impact action.
The kit is also intended for a 5/8-inch arbor angle grinder. For anyone planning a project around a different drill or machine, compatibility should be checked before starting. With tools like this, the connection type and the operating speed matter just as much as the bit size.
Common Jobs This Kit Can Support
- Creating holes in tile for plumbing or fixture openings
- Enlarging an existing opening that needs a slightly larger fit
- Trimming and beveling the edge of a drilled hole
- Working on porcelain, ceramic tile, marble, or granite
- Combining hole cutting and edge finishing in one kit
Compatibility and Setup Notes
This type of kit is mainly about matching the right tool to the right machine and material. The confirmed compatibility points are the 5/8-inch arbor angle grinder and, with the included hex adapter, a hand drill setup that meets the speed requirement. The kit also specifies that impact mode should not be used.
If you are comparing it with other tile cutting accessories, it helps to look closely at three things: the bit diameter you need, the machine connection you have, and whether your project calls for drilling, enlarging, or trimming. Those are the practical details that determine whether a set like this fits the task.
Who It May Be Suitable For
This kit may suit DIY users, remodelers, and trade users who need a compact set for tile drilling and edge finishing. It is especially relevant when a project involves hard surfaces and multiple hole sizes rather than a single repeated cut.
It may also be useful for people who want a kit with both drilling and finishing accessories. Instead of buying only a hole saw, this set includes tools for enlarging and chamfering, which can reduce the need to switch to a different accessory for basic edge work.
Things to Consider Before Buying
Before choosing a kit like this, it helps to check a few practical details:
- Hole size requirements: The included drill bit sizes should match the openings you plan to make.
- Tool compatibility: Confirm that your machine works with a 5/8-inch arbor angle grinder setup or the included adapter arrangement.
- Material type: The kit is intended for porcelain tile, ceramic tile, marble, and granite.
- Work method: Decide whether your project will be dry or wet, since that affects dust and cleanup.
- Operation style: These bits are for rotary drilling, not impact drilling.
For a tool kit in this category, the included accessories are useful only if they align with the task at hand. A set with multiple sizes can be practical, but only if the specific diameters and machine connection are a good fit.
For the latest product information and specifications, view the current product listing.
Frequently Asked Questions
What materials is this kit intended for?
The kit is intended for porcelain tile, ceramic tile, marble, and granite.
Can the bits be used dry?
Yes. The kit supports dry or wet use. Wet drilling is noted for producing less debris and supporting longer tool life.
What do the finger bits do?
The finger bits are used for enlarging holes or grinding, rather than for starting a new hole from scratch.
Can this kit be used with a hand drill?
Yes, if the included hex adapter is used and the speed stays above 2000 RPM. Impact drill mode should not be used.
What is the chamfer bit for?
The chamfer bit is used for trimming holes and creating a beveled edge around an opening.
Final Thoughts
The EXFEIN Diamond Tile Hole Saw Kit is a multi-piece accessory set for drilling, enlarging, and trimming holes in hard tile and stone surfaces. Its main value is the combination of different core drill sizes with finishing tools, along with an adapter and tile blades for broader use in surface-cutting tasks. For projects that involve porcelain, ceramic, marble, or granite, the key points to check are size selection, machine compatibility, and whether the job calls for dry or wet use.