CMT 307.060.12 Dowel Drill 6 x 40 x 67mm Left-Hand by CMT is a precision-engineered, carbide-tipped boring tool built for dowel joinery in panel processing and furniture manufacturing. Designed to drill clean, flat-bottomed blind holes in solid wood, chipboard, MDF, and laminates, this 6mm left-hand rotation drill delivers the tight tolerances and smooth bore walls that professional cabinetmakers and panel fabricators demand. With a hardened tungsten carbide (HW) head, 2 precision-ground cutting edges, and 2 negatively ground spurs, this dowel drill is engineered to perform on multi-spindle CNC boring machines and automated panel processing centers where accuracy and repeatability are non-negotiable.

Key Features

• Super-strength steel body with HW (tungsten carbide) head - the hardened carbide cutting head holds its edge through high-volume production runs, reducing tool change frequency and maintaining consistent hole quality across demanding materials like chipboard, MDF, and coated panels.
• Precision balanced centre point - ensures the bit registers accurately on entry, preventing walking or drift and delivering repeatable hole placement critical for tight-tolerance dowel connections.
• 2 HW precision-ground cutting edges (Z2) - twin carbide cutting edges shear material cleanly with each revolution, producing flat-bottomed blind holes with minimal tearout for strong, flush-fitting dowel joints.
• 2 negatively ground spurs (V2) - the negative spur geometry scores the material boundary ahead of the cutting edges, producing clean, crisp bore walls free of splintering or lifting, especially important in laminates and coated panel surfaces.
• Left-hand (LH) rotation - specifically engineered for use in left-hand spindle positions on multi-spindle boring machines and CNC boring centers, ensuring proper cutting direction and chip evacuation in those machine configurations.
• 8 x 20mm parallel shank - the robust shank provides a secure, stable seating in compatible machine chucks and adapters, minimizing runout and vibration during high-speed blind hole drilling.

Why This Product

• The left-hand rotation design fills a specific and essential tooling need on multi-spindle boring machines where right-hand-only drills simply cannot be used - making this bit a direct, fit-for-purpose solution rather than a workaround.
• Tungsten carbide construction combined with negatively ground spurs means this drill handles abrasive engineered wood products like chipboard, MDF, and HDF without the rapid dulling that high-speed steel tools experience, translating to longer intervals between tool changes on production lines.
• The precision balanced centre point and twin-spur geometry work together to produce consistently clean blind holes - critical for dowel joint integrity in cabinet carcasses and furniture panels where misfits create costly rework.
• A 40mm cutting height on a 67mm overall length body gives this drill the reach needed for deeper boring depths in panel assemblies, making it suitable for applications where a short-series bit would fall short.

Specifications

• Manufacturer Part Number: 307.060.12
• Brand: CMT Orange Tools
• Diameter: 6mm
• Cutting Height: 40mm
• Total Length: 67mm
• Shank: 8 x 20mm
• Rotation: LH (Left-Hand)
• Number of Cutting Edges: 2 (Z2)
• Number of Spurs: 2 (V2)
• Spur Sharpening: Negatively ground spurs
• Blade Material: HW (Tungsten Carbide)
• Body Material: Super-strength steel

Approved Applications

• Blind hole drilling for dowel connections in panel assembly
• Furniture manufacturing and cabinet making
• Panel drilling on CNC boring centers
• Multi-spindle boring machine operations (left-hand spindle positions)
• Solid wood, chipboard, MDF, HDF, plywood, hardwood, softwood, laminates, and coated panels