CMT 308.060.12 Dowel Drill 6 x 30 x 57.5mm Left-Hand by CMT is a precision short-series boring tool engineered for blind hole drilling in panel processing and furniture manufacturing applications. Fitted with a tungsten carbide (HW) cutting head, 2 precision-ground cutting edges, and 2 negatively ground spurs, this 6mm left-hand rotation dowel drill produces clean, flat-bottom holes with minimal tearout - making it a dependable choice for dowel joinery in solid wood, chipboard, MDF, and coated panel materials.

Key Features

• Tungsten Carbide (HW) Cutting Head with Precision Balanced Centre Point - the carbide tip bonded to a super-strength steel body delivers long-lasting edge retention and accurate, repeatable hole placement in demanding production environments.
• 2 Precision-Ground Cutting Edges (Z2) - dual carbide cutting edges shear material cleanly and efficiently, reducing cutting forces and extending tool life in high-cycle boring operations.
• 2 Negatively Ground Spurs (V2) - score the perimeter of the bore before the main cutting edges engage, preventing surface tearout and producing clean, sharp hole entries in laminates and coated panels.
• PTFE Coating on the Cutter Portion - the black or orange PTFE coating on the spiral prevents pitch and glue buildup, keeping the flutes clear and reducing friction during repeated blind hole drilling cycles.
• 4 Spiral Flutes - efficient chip evacuation from the blind hole keeps the cutting zone clear, reducing heat buildup and improving hole quality in MDF, chipboard, and hardwood.
• Parallel Shank with Driving Flat and Length Adjusting Screw (10 x 20mm) - provides secure, positive registration in multi-spindle boring heads and CNC boring centers, allowing precise depth setting without slippage.
• Left-Hand (LH) Rotation - designed specifically for left-hand spindle positions on multi-spindle boring machines, ensuring correct cutting geometry and clean hole walls on both sides of a panel processing center.
• Short Series Total Length of 57.5mm - the compact 57.5mm body suits tight spindle spacing on multi-row CNC boring machines where clearance between adjacent spindles is limited.

Why This Product

• The left-hand rotation configuration fills a specific need on multi-spindle CNC boring centers and panel processing machines where both LH and RH spindles must be populated - using a right-hand drill on a left-hand spindle produces poor hole quality, making this the correct tool choice for those positions.
• The combination of negatively ground spurs and a precision balanced carbide centre point means blind holes are dimensionally consistent and surface-clean on laminates and coated panels, reducing sanding or rework time in furniture and cabinet production.
• The PTFE-coated spiral actively resists adhesive and resin buildup common in chipboard and MDF boring, so the tool maintains cutting performance over longer production runs without frequent cleaning interruptions.
• At 6mm diameter with a 30mm cutting height and the 10 x 20mm parallel shank with driving flat, this drill is sized and configured for standard dowel boring in furniture panel lines, delivering repeatable 6mm blind holes compatible with common 6mm wooden dowel joinery systems.

Specifications

• Manufacturer Part Number: 308.060.12
• Brand: CMT Orange Tools
• Diameter: 6mm
• Cutting Height: 30mm
• Total Length: 57.5mm
• Shank: 10 x 20mm (parallel shank with driving flat and length adjusting screw)
• Rotation: Left-Hand (LH)
• Number of Cutting Edges: 2 (Z2)
• Number of Spurs: 2 (V2)
• Number of Flutes: 4
• Spur Sharpening: Negatively ground spurs
• Blade Material: Tungsten Carbide (HW)
• Body Material: Super-strength steel
• Coating: PTFE (black or orange on cutter portion)

Approved Applications

• Blind hole drilling for dowel connections
• Panel drilling in furniture manufacturing
• Cabinet making and case construction
• Chipboard boring
• MDF and HDF panel processing
• Solid hardwood and softwood drilling
• Plywood and laminate panel boring
• Coated panel dowel hole production