Product Description
The Venom B Shape Diamond Router Bit – Position 1 Half Bullnose Profile is designed for professional countertop fabricators who want to create a clean half bullnose edge profile on stone countertops.
The half bullnose edge is a popular countertop profile used in residential and commercial installations. It produces a rounded top edge while maintaining a flat lower edge, creating a smooth and durable finish that is comfortable to the touch and visually clean.
Venom diamond router bits are engineered specifically for the stone fabrication industry and are designed to shape:
Quartzite, Granite, Marble, Quartz, Porcelain, and Engineered Stone.
The diamond bond is designed to deliver smooth shaping performance, consistent cutting, and long tool life when used with proper water flow during wet routing.
The Venom router bit system follows a standardized shape-code format so fabricators can easily identify the profile type and profile height.
Router bit codes follow this structure:
Letter (Shape) + Number (Profile Height in mm) + M10 Arbor
Example:
B25-M10
Meaning:
B = Half Bullnose profile
25 = Profile height in millimeters
M10 = 10 mm arbor system
All Venom router bits currently produced are Position 1 router bits, meaning they are designed for the primary shaping stage of countertop edge profiling.
Position 1 router bits use a continuous rim diamond cutting surface engineered for smooth and accurate shaping before the edge is polished.
These router bits are designed for wet routing applications, which help cool the diamond bond, extend tool life, and produce cleaner edge profiles during countertop fabrication.
Profile Explanation – Half Bullnose Edge
The half bullnose edge profile creates a rounded top edge while maintaining a flat lower edge.
This design provides a softer edge that is comfortable to the touch while still maintaining a clean modern countertop appearance.
Typical half bullnose features include:
• Rounded top edge
• Flat bottom edge
• Smooth transition between surfaces
Half bullnose edges are commonly used on:
• Kitchen countertops
• Kitchen islands
• Bathroom vanity tops
• Contemporary countertop installations
• Residential stone fabrication
Router Bit Position Explanation
This router bit is a Position 1 router bit.
Position 1 router bits are the primary shaping tools used when profiling stone countertop edges.
They use a continuous rim diamond cutting surface designed to create the final edge shape before polishing.
After shaping the edge with the router bit, fabricators typically refine and polish the edge using diamond polishing pads.
Venom Position 1 router bits are designed for wet routing, which improves cutting performance, produces smoother edges, and increases the lifespan of the diamond bond.
Common Uses / Key Features
• Professional diamond router bit for stone fabrication
• Designed for half bullnose countertop edge profiles
• Position 1 continuous rim shaping bit
• Engineered for wet routing applications
• Long-life diamond bond for shaping hard stone materials
• Produces smooth consistent edge profiles
• Compatible with standard stone router machines
Product Details / Specifications
Profile Shape: Half Bullnose (B Shape)
Router Bit Position: Position 1
Cutting Style: Continuous Rim
Application: Wet Routing
Arbor System: M10
Industry: Stone Fabrication
Designed for use on:
Quartzite, Granite, Marble, Quartz, Porcelain, and Engineered Stone
Each Venom router bit includes:
• 10 mm shaft bolt
• 8 mm shaft bolt option
Available Sizes
B-15 — 15 mm (approximately 5/8 inches)
B-20 — 20 mm (approximately 3/4 inches)
B-25 — 25 mm (approximately 1 inch)
Sizes are selected from the dropdown menu.
