CMT 240.006.04 Biscuit Joiner Blade - 4 inch x 22mm Bore, 6 Tooth is a precision-ground circular saw blade engineered specifically for biscuit joinery machines. Crafted from hard tungsten carbide (HW) and finished with CMT's trademark PTFE Industrial coating, this blade delivers clean, accurate biscuit slots in MDF, solid wood, and engineered wood panels. Designed to fit Lamello, DeWalt, Skil, Bosch, Freud, and similar biscuit joiner machines, it is a reliable upgrade for woodworkers who demand consistent slot quality and extended blade life.

Key Features

• 6-Tooth ATB Grind (10 ATB) - the Alternate Top Bevel tooth geometry produces clean entry and exit cuts with minimal tearout, keeping biscuit slots precise and splinter-free for tight-fitting joints.
• 18 deg. Cutting Angle - an aggressive hook angle promotes smooth, efficient chip removal as the blade passes through wood fibers, reducing heat buildup and prolonging cutting edge life.
• PTFE Industrial Coating - CMT's trademark orange PTFE coating reduces friction, resists pitch and resin buildup, and protects the blade body against corrosion, keeping the blade running cooler for longer service life.
• Hard Tungsten Carbide (HW) Teeth - carbide tips maintain a sharp, durable edge through repeated cuts in MDF and hardwood, reducing how often you need to resharpen or replace the blade.
• 22mm Bore with Pin Hole Compatibility (4/4.5 - 9.5/36) - the precisely dimensioned bore and pin hole fit Lamello, DeWalt, Skil, Bosch, Freud, and similar biscuit joiner machines, making it a direct-fit replacement without adapters.
• 0.156 inch Kerf Thickness - a controlled kerf width produces biscuit slots that closely match standard biscuit dimensions, ensuring snug biscuit fits and strong glue joints.
• 0.118 inch Plate Thickness - a rigid, stable blade plate minimizes vibration during the cut, contributing to consistent slot depth and a smooth finished edge.

Why This Product

• Fits a wide range of popular biscuit joiner brands - Lamello, DeWalt, Skil, Bosch, and Freud - making it a versatile replacement blade that works across the most common machines in a professional or hobbyist shop without requiring special adapters.
• Optimized for MDF and wood, including hardwood and engineered panels - the 10 ATB tooth geometry and carbide construction handle both dense and fibrous materials cleanly, which is critical when working with cabinet components and furniture panels where slot quality directly affects joint strength.
• The PTFE Industrial coating reduces friction and resin adhesion on the blade body, meaning fewer cleaning interruptions and a blade that runs cooler over extended use - a practical advantage during high-volume panel glue-up work.
• With an 18 deg. cutting angle and only 6 teeth, this blade is purpose-built for the short, plunge-style cuts that biscuit joiners make - not a general-purpose blade repurposed for the task, but a geometry designed specifically to produce accurate biscuit slots efficiently.

Specifications

• Manufacturer Part Number: 240.006.04
• Brand: CMT Orange Tools
• Diameter: 4 in.
• Bore Diameter: 22mm
• Number of Teeth: 6
• Tooth Grind: 10 ATB
• Cutting Angle: 18 deg.
• Kerf Thickness: 0.156 in.
• Plate Thickness: 0.118 in.
• Pin Hole: 4/4.5 - 9.5/36
• Material: HW (Hard Tungsten Carbide)

Approved Applications

• Biscuit joinery and biscuit slot cutting
• Panel glue-up and edge joining
• MDF fabrication and joinery
• Solid wood and engineered wood panel assembly
• Compatible machines: Lamello, DeWalt, Skil, Bosch, Freud, and similar biscuit joiner machines

Frequently Asked Questions

What machines is this blade compatible with?

This blade is designed to fit Lamello, DeWalt, Skil, Bosch, Freud, and similar biscuit joiner machines. It features a 22mm bore diameter with a pin hole specification of 4/4.5 - 9.5/36 to accommodate these machines directly.

What materials can this blade cut?

This biscuit joiner blade is ideal for use on MDF and wood. The 10 ATB tooth geometry and hard tungsten carbide construction handle both engineered panels and solid wood effectively, producing clean biscuit slots with minimal tearout.

What is the kerf width and why does it matter for biscuit joinery?

The blade has a kerf thickness of 0.156 in. This controlled kerf width is matched to standard biscuit slot dimensions, ensuring the biscuit fits snugly in the slot for a strong, well-aligned glue joint during panel assembly and edge joining.

What does the PTFE Industrial coating do for this blade?

CMT's PTFE Industrial coating is applied to the blade body to reduce friction during cutting and resist pitch and resin buildup. This keeps the blade running cooler and cleaner over extended use, helping to extend the working life of the blade between sharpenings.