Biscuit Joiner Blades

Biscuit joiner blades create the semi circular slots needed for biscuits.  High quality carbide teeth produce clean slots in hardwoods and softwoods, ensuring snug joints.

What is a biscuit joiner blade used for?
A biscuit joiner blade is designed to cut crescent-shaped slots into wood edges or faces. These slots hold compressed wooden biscuits, which expand when glued to create precise, strong joints in cabinetry, furniture making, and panel assembly. The blade must deliver clean, consistent cuts to ensure perfect alignment.

What size blade do I need for standard biscuit joints?
Most biscuit joiners use a 100 mm (4″) carbide-tipped blade with a 22 mm bore. This size accommodates the most common biscuit sizes:

• #0 (47 × 15 mm)

• #10 (53 × 19 mm)

• #20 (56 × 23 mm)
  Always check your tool’s specs before purchasing a replacement blade, and ensure the blade has thin kerf and fine teeth for smooth slotting.

How do I maintain or replace a biscuit joiner blade?
Keep the blade clean and free of resin buildup, especially if working with hardwoods or MDF. Use a non-corrosive blade cleaner and avoid over-tightening the arbor nut. Replace the blade if it becomes:

• Chipped or dull, leading to rough cuts or burning

• Bent or vibrating, which affects joint accuracy

• Incompatible with new materials or biscuit sizes
  A sharp, well-maintained blade ensures tight-fitting, professional joints every time.