Diamond Core Bits

Diamond core bits are an everyday necessity for tile installations. Available in a variety of sizes and styles, diamond core bits are useful for addressing plumbing and electrical fittings and pilot holes. Higher quality diamond bits are beneficial for tile contractors as they add less stress to a porcelain tile, limiting the chances of breaking or cracking. 

Diamond core bits are a great addition to your toolbox. Hole saw bits are an inexpensive item that offers tremendous value by meeting multiple needs and working easily on a variety of materials. Diamond core bits can be attached to several styles of machines.

Diamond Hole Saw Bits for Drilling

All tile contractors keep a variety of drill saw bits around the toolbox for tile installations. There are a few main categories of diamond bits: core bits, countersink bits, and milling bits.

Core Bits

Core bits are hollow bits with industrial-strength diamonds attached to the core, or body, which, under correct speed, drill evenly and cleanly through the center of porcelain tile to create a circular hole to make access to plumbing or electrical fittings. 

Core bits can be utilized for drilling pilot holes post tile installations for grab bars, towel bars and other aesthetic finishes. Core bits are:

• Available in a large variety of sizes from ¼” to 6”
• Suitable for drilling porcelain, marble, granite, and glass
• Attach easily to most angle grinders
• Able to be used wet or dry
• Keeps the drill time under 20 seconds

Countersink Bits

Countersink bits are typically diamond-coated and conically shaped. The countersink bit is used to create a slight bevel or chamfer around the existing hole created by the diamond core bit. 

Countersink bits were created to shape, enlarge or clean the edge of an existing hole in the tile or natural stone. The unique conical shape of the bit allows for precision to achieve the desired bevel. This improves the appearance of plumbing holes for fixtures, such as your shower head, valves and faucets. 

Higher quality countersink bits with the diamond coating reduce cracking and decrease the time spent shaping the hole created. While not always a necessary item, the diamond countersink bits create the most professional look for tile installations. Countersink bits are:

• Used to relieve stress in uneven holes
• Used to decrease the chance of cracking when pressure from fittings is applied to a tile installation, such as added piping.
• Used to strengthen the hole created by a core bit by relieving the tension of the cut
• Used to clean up the appearance of cuts with clean bevels or chamfers
• Able to be used wet or dry
• Lightweight and convenient to use
• Able to be used on porcelain, glass, ceramic or stone
• Able to be used on a multitude of surfaces, textured or polished

Milling Bits

Milling Bits are used strictly for enlarging or shaping existing holes. The shape and design of a milling bit set it apart from other core bits in its ability to be more precise. With the entire piece fully encased in diamonds, you can utilize the entirety of the bit. Milling bits are:

• Versatile in Functionality: Shape, round or bevel existing holes
• Convenience in Plumbing and Electrical: These are great for expanding existing holes for wiring or conduit. 
• Complementary to Hole Saws: A simple tool that allows for hole adjustments from utilizing existing hole saws.
• Grinder Compatible: Fits on standard grinders
• Multitude of Sizes: Available in a variety of sizes

The Evolution of Drilling Technology with Diamond Core Bits

As technology in diamond tools increased, the demand for more refined and polished work has increased. With unique tile tools such as the diamond core bits, diamond countersink bits and diamond milling bits, tile contractors can offer a finished and professional cut on places previously out-of-sight, out-of-mind. 

When a tile contractor goes the extra step to make all cuts clean, the jobsite and finished quality of the work stands out above the competition. Small changes, such as using a countersink bit to decrease tension from the hole cut can, and will, reduce costly mistakes on installations. If you’ve had a tile crack on as you tighten the final turn on the plumbing fixtures, you know the time lost on correcting this error. Add value to your routine by protecting each step to the best of your ability with quality tile tools from Tile ProSource. 

Our Favorite Drilling Bits from Trusted Brands

When purchasing hole saw drilling bits, the quality of the diamond, the quality of the core, and the reliability of the shape are huge factors to reduce mistakes when drilling through porcelain, glass or natural stone. At Tile ProSource, we trust in the top manufacturers of diamond drilling bits for our clients. Montolit and Bihui are tried and true diamond drilling tool manufacturers who stand above the competition. 

The top drilling tool from Montolit is the Montolit FSB Diamond Core Bit.

• Works on all types of materials including porcelain, glass, natural stone and ceramic
• Can be used wet or dry
• Thread most angle grinders without adapters
• Available in a large variety of sizes 
• Highest quality industrial diamonds for the cleanest grind
• Highest quality core for stability and speed
• Manufactured for longevity giving contractors the ability to use for multiple jobs

Shop Drilling Bits from Top Brands

Built to make cuts cleaner, faster, drilling bits are a toolbox necessity for any tile contractor, and dare we say…plumber. The top brands of drilling bits are made from the highest quality diamonds, in the correct shape, and with the best quality core. Investing in the best manufacturing techniques gives the drilling bit a longer life. Even the cuts you can’t always see, such as your pipe and valve box cuts, need the final touch of drilling bits. Developed to not only clean up edges, drilling bits help to reduce stress in the tile from hole cuts, giving you some leeway and peace of mind when doing the final tightening of beauty rings. Walk away confident in your tile installation with high-quality drilling bits.