Go Big or Go Home.

Sometimes a standard chamfer cone just isn't enough.

Meet Big Boy — Crowne's oversized diamond chamfer cone built for faster, more aggressive shaping, beveling and hole enlargement in porcelain and tile.

The larger working surface removes more material faster, making Big Boy ideal when you've got serious shaping to do and don't want to spend all day doing it.

But there's a problem with most oversized chamfer cones:

They're heavy.

So we took the weight out where you don't need it.

Big Boy features a hollow-core design that reduces unnecessary rotating mass compared to traditional solid large-format chamfer cones—putting less unnecessary weight on your grinder while still delivering aggressive material removal.

MORE CONE. LESS DEAD WEIGHT.

BIGGER. FASTER. SMARTER.

• Oversized Design — A larger working surface makes Big Boy ideal for larger holes and aggressive shaping.
• Fast Material Removal — Built to remove porcelain and tile quickly when a standard chamfer cone would take too long.
• Aggressive Diamond Surface — Designed for serious grinding, shaping and hole enlargement.
• Hollow-Core Construction — Removes unnecessary material from the center of the tool to reduce overall weight.
• Easier on Your Grinder — Less unnecessary rotating mass means less weight hanging off your grinder compared with similarly sized solid-core cones.
• Shape & Enlarge Holes — Open up drilled holes when plumbing, fixtures or penetrations need additional clearance.
• Clean Up Rough Edges — Smooth and bevel the edge of drilled openings for a cleaner finished result.
• Built for Pros — Made for installers who need to remove material quickly and move on.

WHY HOLLOW CORE?

Making a chamfer cone bigger is easy.

Making a bigger chamfer cone without turning it into a brick hanging off your grinder takes a little more thought.

Many oversized chamfer cones use a solid-core construction.

Big Boy doesn't.

Its hollow center eliminates unnecessary material and weight while maintaining the large diamond working surface you actually need.

The result:

Aggressive material removal without unnecessary bulk.

GREAT FOR

• Enlarging drilled holes
• Beveling hole edges
• Cleaning up rough openings
• Plumbing penetrations
• Faucet and fixture openings
• Shower valve openings
• Porcelain tile
• Ceramic tile
• Natural stone
• Large-format tile fabrication

WHEN SIZE MATTERS

A smaller chamfer cone is great for detail work and everyday hole cleanup.

Big Boy is for when you need to move material.

Larger opening?

More material to remove?

Need it done faster?

Grab the Big Boy.

TECH SPECS

• Product: Big Boy
• Type: Large diamond chamfer cone
• Construction: Hollow core
• Application: Chamfering, shaping and enlarging drilled holes
• Cutting Action: Aggressive material removal
• Materials: Porcelain, ceramic tile and compatible stone
• Tool: Compatible angle grinder
• Primary Advantage: Large working surface with weight-reducing hollow-core construction
• Professional Use: Yes

STOP GRINDING ALL DAY.

Big Boy isn't about making a chamfer cone bigger just for the sake of making it bigger.

It's about getting the job done faster.

More working surface.

More aggressive material removal.

Less unnecessary weight.

Big Boy

MORE CONE. LESS DEAD WEIGHT.

Crowne Tools — For Pros. By Pros.