CMT 306.080.11 Dowel Drill 5/16" x 30 x 55.5mm RH by CMT is a precision-engineered boring tool built for reliable blind hole drilling in furniture manufacturing, cabinet making, and panel processing applications. Featuring a hardened wood (HW) carbide-tipped head, 2 cutting edges, and 2 negatively ground spurs, this right-hand rotation dowel drill delivers clean, consistent bores in solid wood, chipboard, MDF, and laminates - making it a dependable choice for high-volume CNC production environments and multi-spindle boring machines alike.

Key Features

• Super-strength steel construction with HW head - provides exceptional wear resistance, extending tool life through demanding production cycles without compromising bore quality.
• Precision balanced centre point - ensures accurate hole placement and prevents wandering on entry, which is critical for tight-tolerance dowel joinery in furniture and cabinet panels.
• 2 HW precision ground cutting edges (Z2) - deliver sharp, repeatable cuts that reduce heat buildup and maintain consistent bore diameter across many cycles.
• 2 negatively ground spurs (V2) - shear panel surfaces cleanly before the main cutter engages, producing smooth, tear-free bore walls ideal for coated panels and laminates.
• Right-hand (RH) rotation - matches the standard spindle direction of CNC boring centers and multi-spindle panel processing machines, ensuring straightforward drop-in compatibility.
• 8x20mm parallel shank - provides a secure, stable grip in standard boring machine chucks and adapters, minimizing runout for precise hole positioning.
• 5/16" (approx. 8mm) nominal diameter with 30mm cutting height - sized for standard dowel hole applications, giving enough depth for solid, pull-resistant dowel connections in furniture assembly.

Why This Product

• The HW carbide-tipped head paired with negatively ground spurs makes this drill a strong match for coated panels and laminates where clean entry and exit surfaces are non-negotiable for finished furniture quality.
• With a total length of 55.5mm and a 30mm cutting height, this short-series format fits standard CNC boring center tooling plates and multi-spindle configurations without adapter modifications.
• The precision balanced centre point combined with 2 ground cutting edges supports accurate, repeatable blind hole drilling - a key requirement for dowel connection integrity in high-volume cabinet and panel production.
• The hardened wood (HW) head material is designed to withstand repeated resharpenings, allowing shops to recondition the tool rather than replace it outright, reducing long-term tooling costs.

Specifications

• Manufacturer Part Number: 306.080.11
• Brand: CMT Orange Tools
• Product Type: Dowel Drill
• Diameter: 5/16"
• Cutting Height: 30mm
• Total Length: 55.5mm
• Shank: 8x20mm
• Number of Teeth: 2
• Number of Spurs: 2
• Spur Sharpening: Negatively ground spurs
• Rotation: Right-hand (RH)
• Blade Material: HW (Hardened Wood carbide-tipped)

Approved Applications

• Blind hole drilling for dowel connections
• Panel drilling in furniture manufacturing
• Cabinet making and case goods production
• Drilling in solid wood, chipboard, MDF, and laminates
• High-speed CNC boring center operations
• Multi-spindle panel processing