CMT 306.030.21 Dowel Drill - 3 x 18 x 55.5mm Right-Hand is a precision-engineered boring tool from CMT, purpose-built for high-speed blind hole drilling in panel processing and furniture manufacturing applications. With a 3mm cutting diameter, an 18mm cutting height, and a 55.5mm overall length, this compact dowel drill is sized for demanding CNC routing and multi-spindle boring operations where clean, accurate holes are critical for reliable dowel joinery. The HW (tungsten carbide) tipped head with 2 cutting edges and 2 negatively ground spurs delivers consistent bore wall quality in solid wood, chipboard, MDF, and coated panels - cycle after cycle at production speeds.

Key Features

• HWM (tungsten carbide) head with precision balanced centre point - the balanced centre point ensures accurate hole placement and reduces runout, which is essential for tight-tolerance dowel connections in cabinet and furniture production.
• 2 precision ground HW cutting edges (Z2) - two carbide-tipped cutting edges provide consistent chip removal and long service life, reducing tool change frequency during high-volume CNC boring runs.
• 2 negatively ground spurs (V2) - the negative spur geometry scores the material fibers cleanly before the cutting edges engage, producing flat-bottomed blind holes with clean, tear-free bore walls even in coated or laminated panels.
• Super-strength steel body construction - the robust steel shank supports high-cycle CNC production speeds without flex or fatigue, maintaining dimensional accuracy over extended use.
• 8 x 20mm parallel shank - the standardized shank diameter is compatible with multi-spindle CNC boring machines, boring centers, and panel processing centers equipped with standard collets or boring head adapters.
• Right-hand (RH) rotation - designed for conventional right-hand spindle configurations, ensuring straightforward integration into standard CNC boring setups without special adapters.
• Resharpenable design - the HW cutting edges and spurs can be reground multiple times, extending the usable life of the tool and reducing long-term tooling cost per hole.

Why This Product

• The 3mm cutting diameter with an 18mm cutting height is specifically dimensioned for standard dowel pin blind holes - a size used extensively in flat-pack furniture and cabinet carcass assembly - making this drill a direct fit for production boring without custom setup.
• The combination of negatively ground spurs and precision ground HW cutting edges means the drill handles laminated, coated, and veneered panels without chipping or delamination at the bore edge, reducing rejects and rework on finished panel goods.
• The resharpenable HWM construction allows the cutting geometry to be restored rather than replaced, which matters in operations where tooling cost is tracked per unit - fewer tool purchases across the life of the bit.
• With a standardized 8 x 20mm shank, this drill drops into existing multi-spindle CNC boring heads and panel processing centers without requiring custom adapters, minimizing changeover time and keeping production lines moving.

Specifications

• Manufacturer Part Number: 306.030.21
• Brand: CMT Orange Tools
• Product Type: Dowel Drill
• Diameter: 3mm
• Cutting Height: 18mm
• Total Length: 55.5mm
• Shank: 8 x 20mm
• Number of Cutting Edges: 2
• Number of Spurs: 2
• Sharpening: Negatively ground spurs
• Rotation: Right-hand (RH)
• Blade Material: HWM (tungsten carbide)

Approved Applications

• Blind hole drilling for dowel connections
• Panel drilling in furniture manufacturing
• Cabinet making and carcass assembly
• Chipboard and particleboard boring
• MDF and HDF panel processing
• Hardwood and softwood boring
• Plywood drilling
• Laminated and coated panel boring