CMT Industrial Scoring Conical Blade 100 x 22mm T20 CO+ATB by CMT is a precision-engineered scoring saw blade designed for industrial panel sizing applications. Built to prevent chipping and tearout on melamine, double-sided laminate, and veneered panels, this conical scoring blade works ahead of the main saw blade to cleanly pre-score the bottom face of the panel before the primary cut is made. The conical tooth profile delivers an adjustable kerf width ranging from 3.1 to 4.0mm, allowing the scoring kerf to be matched precisely to the main blade kerf - a critical requirement for clean, chip-free cuts on coated and laminated panel surfaces. With 20 alternating top bevel teeth in a CO+ATB grind geometry and a 5 deg. cutting angle, this blade is engineered for continuous production duty in industrial environments.

Key Features

• Conical CO+ATB tooth geometry (CO+5ATB) - the conical profile allows the kerf width to be adjusted from 3.1 to 4.0mm by raising or lowering the blade, so the scoring kerf can be matched exactly to the main blade without re-tooling or shimming.
• 20 alternating top bevel teeth - the ATB grind pattern creates a shearing cut on both sides of the score line, slicing through melamine and laminate coatings cleanly and reducing the risk of surface chipping on the panel bottom face.
• 5 deg. cutting angle - a positive hook angle promotes smooth, controlled chip removal during the scoring pass, reducing stress on the blade and the drive motor of the panel sizing machine.
• 100mm blade diameter with 22mm bore - compact scoring blade diameter keeps the scoring unit low-profile while the 22mm bore provides compatibility with standard panel sizing machine arbors.
• 2.5mm plate thickness - a rigid, accurately machined blade body minimizes vibration and runout during high-speed production scoring passes, contributing to consistent score line width and edge quality.
• Hardmetal (HW) carbide tipped teeth - industrial-grade tungsten carbide tips resist wear and maintain cutting edge sharpness over extended production runs, reducing the frequency of blade changes and downtime.
• Suggested for use with thick-kerf or panel sizing blades - designed as a companion blade to larger main blades, ensuring the scoring kerf is always equal to or slightly wider than the main blade kerf for chip-free results on both panel faces.
• Recommended for machines with vertical regulation of the scoring blade - the conical geometry delivers its full kerf-adjustment benefit when the machine is equipped with a vertical height-adjustment mechanism for the scoring unit.

Why This Product

• The adjustable 3.1 to 4.0mm conical kerf eliminates the need for multiple fixed-kerf scoring blades to match different main blades - one blade covers a range of kerf widths by simple vertical adjustment on machines with scoring blade height regulation.
• The CO+ATB grind is specifically engineered for melamine and laminate surfaces, where standard flat-top or alternate-top-bevel main blades alone produce tearout on the bottom face - this scoring blade solves that problem before the main blade reaches the panel.
• Hardmetal carbide construction and industrial-grade build quality make this blade suitable for continuous production use on panel sizing machines and sliding table saws running laminated panel materials all day.
• The compact 100mm diameter and standard 22mm bore make this blade a direct-fit replacement for scoring units on a wide range of industrial panel sizing machines that use vertical scoring blade adjustment.

Specifications

• Manufacturer Part Number: 288.100.20K
• Brand: CMT Orange Tools
• Blade Diameter: 100mm
• Bore Diameter: 22mm
• Number of Teeth: 20
• Tooth Grind: CO+5ATB (Conical + Alternate Top Bevel)
• Cutting Angle: 5 deg.
• Kerf Thickness Range: 3.1 - 4.0mm
• Plate Thickness: 2.5mm
• Tooth Material: HW (Hardmetal Carbide)

Approved Applications

• Scoring - pre-scoring the bottom face of laminated and coated panels prior to the main saw blade cut
• Panel sizing on industrial panel sizing machines with vertical scoring blade regulation
• Cutting melamine-coated panels
• Cutting double-sided laminate panels

Frequently Asked Questions

What is the difference between a conical scoring blade and a standard flat scoring blade?

A conical scoring blade has teeth ground with a conical profile, which means the kerf width changes as the blade is raised or lowered vertically. This allows the operator to dial in a kerf width between 3.1mm and 4.0mm by adjusting the vertical height of the scoring unit - no shims or blade swaps required. A flat scoring blade produces a fixed kerf width and must be swapped or shimmed to match a different main blade kerf. The conical design on this CMT blade is why it is recommended specifically for machines equipped with vertical scoring blade regulation.

What materials is this scoring blade designed to cut?

This blade is designed for use with melamine and laminate-coated panels, including double-sided laminate panels. The CO+ATB tooth geometry is selected specifically for coated and veneered surfaces where clean, chip-free edges on the bottom face of the panel are required.

Does this scoring blade replace the main saw blade?

No. This is a scoring blade, not a main rip or crosscut blade. It is used in conjunction with a thick-kerf or panel sizing main blade. The scoring blade runs ahead of and slightly below the main blade, pre-scoring the panel surface to prevent splintering and tearout on the bottom face when the main blade completes the cut. CMT recommends pairing this blade with a thick-kerf or panel sizing saw blade.

How do I adjust the kerf width of this conical scoring blade?

The kerf width is adjusted by changing the vertical height of the scoring blade on the machine. Because the teeth are ground with a conical profile, raising the blade increases the effective kerf width and lowering it decreases it - across the 3.1 to 4.0mm range. This adjustment is available on machines equipped with vertical regulation of the scoring blade, which is the machine type CMT recommends for use with this blade. Always match the scoring kerf width to the kerf of the main blade before cutting.