The CMT Precision Dado Set - 8 in. with 24+24 Teeth is a professional-grade stacked dado blade system engineered to cut flat-bottom grooves, rabbets, and box joints with exceptional precision. Combining an ATB 20 deg. tooth profile on the outer blades with FLAT-ground chippers, this set delivers virtually splinter-free cuts across solid hardwoods, softwoods, veneered plywood, laminate, and melamine. The -12 deg. negative hook angle gives the cutter controlled, smooth feeding behavior - reducing tear-out and helping woodworkers achieve clean, consistent results in demanding cabinetry and joinery applications. With a kerf range spanning 1/4 in. to 29/32 in., a single set covers the full spectrum of dado and groove widths needed in professional and shop environments.

Key Features

• ATB 20 deg. + FLAT tooth configuration - the alternate top bevel grind on the outer blades slices wood fibers cleanly at the groove walls, while the flat-ground chippers clear waste from the bottom, leaving a smooth, flat dado floor ready for joinery without additional cleanup.
• -12 deg. negative hook angle - reduces aggressive blade grab and self-feeding behavior, giving the operator better control on the table saw or radial arm saw and minimizing the risk of tear-out on sensitive veneered surfaces and melamine faces.
• Kerf range of 1/4 in. to 29/32 in. - a single set covers the full range of standard dado, rabbet, and groove widths, eliminating the need for multiple specialized sets and making this a versatile solution for cabinet shops and furniture makers.
• 8 in. diameter with 24+24 teeth - the two 24-tooth outer blades provide adequate tooth count for smooth wall finish on both sides of the cut across a wide range of wood species and sheet goods.
• 5/8 in. bore (15.88mm) - fits the standard arbor size found on most stationary table saws and radial arm saws, making integration into common shop equipment straightforward.
• HW (hard metal / carbide) cutting material - carbide-tipped teeth maintain edge retention far longer than high-speed steel, reducing resharpening frequency and keeping the set productive over extended use.
• Maximum speed of 6,000 RPM - rated for the operating speeds of standard table saw motors, providing a defined safe operating envelope for confident use in production and hobbyist shop settings.
• Inside blade thickness options of 3.2mm, 2.4mm, and 1.6mm - the graduated chipper blade thicknesses give woodworkers the precise combination needed to dial in exact groove widths, with fine-tuning shims available for the most accurate fit.

Why This Product

• For woodworkers who need to cut grooves ranging from 1/4 in. all the way to 29/32 in., this set eliminates the compromise of using a single fixed-width dado blade - one set handles shelf dadoes, drawer-bottom grooves, rabbet joints, and box joints without changing equipment.
• The combination of a -12 deg. negative hook angle and an ATB 20 deg. outer blade grind addresses one of the most common frustrations in dado cutting - splintered edges on melamine, laminate, and veneered plywood - making this set particularly well-suited for cabinet and furniture production where face materials are expensive and visible.
• With 24+24 teeth across the two outer blades and carbide (HW) cutting tips, this set is built to stay sharp and deliver repeatable cut quality over a high volume of cuts - a practical advantage in production shops where downtime for blade changes affects throughput.
• The graduated chipper blade set (3.2mm in 4 pieces, 2.4mm in 1 piece, and 1.6mm in 1 piece) gives the user granular control over groove width, so joints fit accurately without relying on trial-and-error stacking combinations found in less comprehensive dado systems.

Specifications

• Manufacturer Part Number: 230.524.08
• Brand: CMT Orange Tools
• Blade Diameter: 8 in.
• Bore Diameter: 15.88mm (5/8 in.)
• Number of Teeth: 24 + 24
• Tooth Grind: ATB 20 + FLAT
• Cutting Angle: -12 deg.
• Kerf Range: 1/4 in. to 29/32 in.
• Cutting Material: HW (carbide)
• Maximum Speed: 6,000 RPM
• Inside Blade Thicknesses: 3.2mm (4 pieces), 2.4mm (1 piece), 1.6mm (1 piece)

Approved Applications

• Dado cuts in solid hardwood and softwood
• Rabbet joints for cabinet and furniture construction
• Grooves for shelf and panel installation
• Box joints and finger joints
• Cuts in veneered plywood, melamine, and laminate sheet goods

What's Included

• 2x outer saw blades - 8 in. diameter, 24 teeth each, ATB 20 deg. + FLAT, 5/8 in. bore
• 4x inside chipper blades - 3.2mm wide
• 1x inside chipper blade - 2.4mm wide
• 1x inside chipper blade - 1.6mm wide

Frequently Asked Questions

What is the maximum dado width this set can cut?

This set cuts grooves from a minimum of 1/4 in. up to a maximum of 29/32 in. by stacking the outer blades with different combinations of the included chipper blades and shims.

What table saw arbor size is required to use this dado set?

The outer blades and chipper blades are bored at 15.88mm - the standard 5/8 in. arbor size - which is compatible with most stationary table saws and radial arm saws commonly found in professional and hobbyist shops.

Why does this set use a negative hook angle, and what does that mean for cutting performance?

The -12 deg. negative hook angle means the tooth face leans away from the direction of feed rather than toward it. This reduces the blade's tendency to self-feed aggressively into the workpiece, giving the operator more control and helping minimize splintering and tear-out - particularly important when cutting through melamine, laminate, or thin veneered surfaces.

What is the maximum safe operating speed for this dado set?

This dado set is rated for a maximum of 6,000 RPM. Always verify that your table saw or radial arm saw does not exceed this rating before mounting the set on the arbor.