CMT Dowel Drill 10 x 40 x 67mm Left-Hand Rotation is a precision-engineered carbide-tipped boring tool built for clean, accurate blind-hole drilling in panel processing and furniture manufacturing applications. Designed with a super-strength steel body and a tungsten carbide (HW) cutting head, this left-hand rotating dowel drill delivers flat-bottomed holes with crisp, tear-free walls - making it a reliable choice for high-volume dowel joinery in solid wood, chipboard, MDF, and coated panel materials. The 10mm cutting diameter and 40mm cutting height accommodate standard dowel connection depths, while the compact 67mm overall length suits multi-spindle and CNC boring machine setups that demand consistent, repeatable results.

Key Features

• Tungsten Carbide (HW) Cutting Head on Super-Strength Steel Body - the hard carbide material resists wear and maintains sharp cutting geometry over extended production runs, reducing downtime and replacement frequency in busy panel operations.
• 2 Precision-Ground HW Cutting Edges (Z2) - dual carbide edges produce consistent chip removal and smooth bore walls, resulting in tight-fitting dowel connections with minimal finishing cleanup.
• 2 Negatively Ground Spurs (V2) - the negative grind geometry scores the material fibers cleanly ahead of the cutting edges, preventing surface tearout and delivering flat-bottomed holes with clean entry points on laminates and coated panels.
• Precision Balanced Centre Point - keeps the drill accurately on-center at entry, reducing walk-off and ensuring hole placement stays within tolerance even during fast, repetitive boring cycles.
• Left-Hand (LH) Rotation - specifically designed for left-hand spindle positions on multi-spindle boring machines and CNC boring centers, allowing correct pairing with the appropriate machine spindle without modification.
• 8 x 20mm Shank - the parallel shank dimensions are matched to standard boring machine collets and chucks, simplifying tooling setup and ensuring secure, vibration-free clamping during operation.

Why This Product

• The negatively ground spurs and precision-balanced centre point work together to produce clean, flat-bottomed blind holes - eliminating the tearout and ragged edges that lead to poorly fitting dowel joints in furniture and cabinet production.
• Left-hand rotation makes this drill the correct tool for LH spindle positions on multi-spindle CNC boring machines and boring centers, ensuring proper chip ejection direction and surface quality that a mismatched RH drill cannot provide.
• The 10mm diameter and 40mm cutting height match standard dowel connection requirements, making this a purpose-built solution for panel drilling in furniture manufacturing and cabinet making rather than a general-purpose compromise.
• Tungsten carbide (HW) construction provides durability suited to abrasive engineered panel materials such as chipboard, MDF, HDF, and laminates - materials that rapidly dull standard high-speed steel tooling.

Specifications

• Manufacturer Part Number: 307.100.12
• Brand: CMT Orange Tools
• Product Type: Dowel Drill
• Diameter: 10mm
• Cutting Height: 40mm
• Total Length: 67mm
• Shank: 8 x 20mm
• Rotation: LH (Left-Hand)
• Number of Cutting Edges: 2
• Number of Spurs: 2
• Spur Sharpening: Negatively ground spurs
• Blade Material: HW (Tungsten Carbide)

Approved Applications

• Blind hole drilling for dowel connections
• Panel drilling in furniture manufacturing
• Cabinet making and case construction
• Boring in solid wood (hardwood and softwood)
• Boring in chipboard and particle board
• Boring in MDF and HDF
• Boring in plywood
• Boring in laminates and coated panels
• Multi-spindle CNC boring machine operations
• CNC boring center panel processing