The CMT 315.220.11 Countersink for 2 Flute Drills by CMT is a precision-engineered carbide countersink designed to work in tandem with 2-flute dowel drills, delivering a clean, flush countersink in a single machining pass. Built from hardmetal (HW) carbide material and rotating right-hand (RH), this tool is sized for a 7/16"-15/32" diameter range and is ideally suited for use on solid wood, chipboard, MDF, laminates, and coated panels in professional boring operations. Its compact 15mm total length and 45 deg. cutting angle make it a precise, reliable solution for furniture production, cabinet assembly, and CNC panel processing workflows.

Key Features

• Hardmetal (HW) Carbide Construction - provides exceptional wear resistance and edge retention, reducing tool changes and maintaining consistent countersink quality across high-volume production runs.
• 45 deg. Cutting Angle - produces a properly proportioned countersink geometry that ensures flush, clean seating for fasteners and hardware in woodworking and panel processing applications.
• 22mm Diameter with 11mm-12mm Bore Diameter - the bore range accommodates 2-flute dowel drill shanks precisely, eliminating chatter and ensuring concentric, accurate countersinking with every pass.
• Right-Hand (RH) Rotation - matches standard CNC boring machine spindle direction, allowing direct, tool-ready compatibility with multi-spindle CNC boring centers and panel processing equipment.
• 2-Tooth Cutting Configuration - the dual-flute design balances chip evacuation with surface quality, leaving clean countersink walls without tearout in hardwood, softwood, MDF, and laminate substrates.
• Compact 15mm Total Length - the short profile minimizes tool overhang and vibration during operation, contributing to greater bore accuracy and consistent depth control across repeat cycles.

Why This Product

• Designed specifically for use with 2-flute dowel drills, this countersink integrates into existing boring setups without requiring separate tooling stages, saving time and reducing setup complexity on panel processing lines.
• The HW carbide material delivers long-lasting cutting performance in demanding materials such as MDF, chipboard, and hardwood laminates - materials that are notoriously abrasive and accelerate wear in lesser tooling.
• With a bore diameter range of 11mm-12mm, this countersink fits a practical range of drill shanks, giving operators flexibility across different 2-flute drill configurations without purchasing multiple tool sizes.
• The 45 deg. included angle and 2-tooth geometry work together to produce repeatable, burr-free countersinks suitable for high-precision furniture and cabinetry production where surface quality and fastener seating accuracy are critical.

Specifications

• Manufacturer Part Number: 315.220.11
• Brand: CMT Orange Tools
• Cutting Angle: 45 deg.
• Diameter: 22mm
• Bore Diameter: 11mm - 12mm
• Total Length: 15mm
• Rotation: Right-Hand (RH)
• Number of Teeth: 2
• Blade Material: HW (Hardmetal Carbide)

Approved Applications

• Chipboard and particle board panel processing
• MDF and HDF machining
• Hardwood and softwood boring operations
• Plywood and multi-layer panel fabrication
• Laminated and coated panel countersinking
• CNC multi-spindle boring center operations
• Furniture and cabinet component production