The CMT Box and Finger Joint Set (230.224.08) gives woodworkers a practical, no-fuss solution for cutting precise box joints and finger joints on the table saw or radial arm saw. This CMT set includes two identical 8-inch blades, each carrying 24 Flat Top Grind (FTG) teeth and a 5/8-inch bore, so a single blade produces clean 1/4-inch grooves in hardwood and softwood alike - and stacking both blades together extends the cut to a 3/8-inch groove with no shims required. Whether you are building small boxes, drawers, or decorative finger-joint frames, this twin-blade system delivers the flat-bottomed, tight-fitting results that fine joinery demands.

Key Features

• Dual kerf width in one set - a single blade cuts a 1/4-inch groove; placing both blades together produces a 3/8-inch groove, giving you two joint widths without swapping tooling or buying a separate stack dado set.
• 24-tooth Flat Top Grind on each blade - the FTG tooth geometry shears wood fibers cleanly and leaves a perfectly flat groove floor, which is essential for the snug, gap-free fit that box joints and finger joints require.
• Hard metal (HW) carbide tipping - carbide-tipped teeth stay sharper longer through repeated cuts in soft and hardwood, reducing the frequency of sharpening and keeping edges precise for fine joinery work.
• 0 deg. hook angle - the neutral hook angle controls feed rate and reduces grabbing, which improves cut safety and consistency when running narrow workpieces across the table saw.
• 5/8-inch bore with 6,000 RPM rating - the standard 5/8-inch arbor hole fits most stationary table saws and radial arm saws, and the 6,000 RPM maximum keeps operation safely within the speed range of typical shop machines.
• Two identical blades included - matching blades mean either blade can be used as the primary cutter, so wear is distributed evenly over time and the set maintains consistent kerf width through the life of the carbide.

Why This Product

• Woodworkers who need both 1/4-inch and 3/8-inch box joint grooves can achieve both widths from a single CMT set - no extra blades, no shim packs, and no complicated setup between cuts.
• The Flat Top Grind tooth profile is specifically suited to producing flat-bottomed grooves in hardwood and softwood, which is the precise geometry that finger joints and box joints need for a tight mechanical interlock.
• With a maximum speed of 6,000 RPM and a 5/8-inch bore, this set is engineered to work with the stationary table saws and radial arm saws already found in most woodworking shops - no adapters or special arbors needed.
• Hard metal carbide teeth maintain their edge through repeated crosscuts in both soft and hardwood, making this set a durable long-term tool for production joinery or frequent hobby use.

Specifications

• Manufacturer Part Number: 230.224.08
• Brand: CMT Orange Tools
• Set Type: Box and Finger Joint Set
• Blade Diameter: 8 in.
• Number of Teeth: 24 + 24 (two blades)
• Tooth Grind: Flat Top Grind (FTG)
• Cutting Angle: 0 deg.
• Sharpening Style: Flat
• Bore Diameter: 15.88 mm (5/8 in.)
• Teeth Thickness (Kerf Width): 1/4 in. to 3/8 in.
• Maximum Speed: 6,000 RPM
• Tooth Material: Hard Metal (HW) Carbide

Approved Applications

• Box joints
• Finger joints
• Precision grooves in hardwood
• Precision grooves in softwood

What's Included

• 2x 8 in. saw blades - 24 teeth each, Flat Top Grind, 5/8 in. bore