Product Description
CMT 311.060.21 Dowel Drill - 6 x 30 x 70mm Right-Hand Rotation is a solid carbide boring bit engineered for clean, precise blind hole drilling in furniture manufacturing, cabinet making, and panel processing applications. Built entirely from premium super-micrograin carbide, this 6mm diameter dowel drill delivers exceptional bore quality in hardwood, MDF, chipboard, particle board, veneered panels, and other demanding composites - making it a reliable choice for high-speed boring units and CNC routing centers where accuracy and longevity matter most.
Key Features
- Solid super-micrograin carbide construction - the bit is made entirely of premium quality super-micrograin carbide, allowing an almost infinite number of resharpenings and providing extra safety through its one-piece solid structure, reducing tool replacement costs over time.
- Curved, negatively ground spurs (2 spurs, V2) - the unique spur geometry produces exceptionally clean bore walls and flat-bottom holes with no rough edges or tearout, which is critical for furniture joinery where hole quality directly affects dowel fit and panel aesthetics.
- Centre point balanced tip - the balanced centre point keeps the drill on target from the moment of entry, reducing wandering and ensuring consistent hole placement across repetitive panel drilling operations.
- Plunge edge runs to the centre of the bit - this design reduces drilling resistance during entry, allowing faster plunge speeds and higher production throughput on CNC boring centers and multi-spindle machines.
- Cylindrical head larger than traditional tips - the oversized cylindrical head is extremely resistant to prolonged use, maintaining dimensional stability and bore diameter accuracy even under heavy-cycle production demands.
- 2 cutting edges and 2 spiral flutes (Z2) - the twin-flute spiral configuration promotes efficient chip evacuation during deep blind hole drilling, reducing heat buildup and keeping the cutting zone clear for consistent results.
- 10 x 27mm parallel shank with driving flat - the standardized parallel shank with driving flat ensures secure seating and positive drive in multi-spindle boring machines and CNC boring centers, preventing slippage under load.
- Extreme sharpening grade - the bit is rated for extreme resharpenings, meaning it can be reconditioned repeatedly rather than discarded, delivering long-term value in production environments.
- Right-hand rotation (RH) - matched to standard boring machine spindle configurations, ensuring compatibility with the widest range of multi-spindle CNC boring and panel processing centers.
Why This Product
- Cleaner holes in difficult materials - the negatively ground curved spurs and centre-balanced tip are specifically designed to handle hardwood and difficult composites such as particle board, MDF, and veneered wood without leaving rough edges, which protects surface finishes and reduces rework in high-volume cabinet and furniture production.
- Built for high-cycle CNC and multi-spindle production - the solid carbide body and oversized cylindrical head are engineered to withstand the demands of high-speed boring units and CNC routers, making this bit a practical fit for production shops that run continuous boring cycles.
- Resharpenable solid carbide extends the tool life cycle - because the bit is a single solid unit of carbide rather than a tipped design, it can be resharpened an almost unlimited number of times, reducing per-hole tooling cost significantly compared to non-resharpenable alternatives.
- Reduced drilling resistance for faster cycle times - the plunge edge extending to the centre of the bit lowers entry resistance, which translates directly to faster drilling speeds and shorter cycle times on automated panel processing lines.
Specifications
- Manufacturer Part Number: 311.060.21
- Brand: CMT Orange Tools
- Diameter: 6mm
- Cutting Height: 30mm
- Total Length: 70mm
- Shank: 10 x 27mm parallel shank with driving flat
- Number of Cutting Edges: 2
- Number of Flutes: 2
- Number of Spurs: 2
- Rotation: Right-hand (RH)
- Material: HWM solid carbide (super-micrograin carbide)
- Sharpening Grade: Extreme
Approved Applications
- Blind hole drilling for dowel connections and panel joinery
- Furniture manufacturing and cabinet making
- Panel drilling in chipboard, MDF, HDF, particle board, and veneered wood
- Drilling in hardwood and difficult composite materials
- High-speed boring unit and CNC router operations
- Multi-spindle CNC boring machine applications
- Panel processing center production runs
Frequently Asked Questions
What materials is this dowel drill designed to bore through?
This bit is designed for use in hardwood and difficult composites including particle board, MDF, and veneered wood. It is also suitable for chipboard, HDF, and similar panel materials commonly used in furniture and cabinet production.
Can this bit be resharpened, and how many times?
Yes - because this is a solid carbide construction rather than a tipped bit, it can be resharpened an almost infinite number of times. The solid one-piece carbide body also adds a structural safety advantage over brazed-tip designs.
What machines is this dowel drill compatible with?
This bit is designed for use with high-speed boring units and CNC routers. Its 10 x 27mm parallel shank with driving flat is suited for multi-spindle CNC boring machines, CNC boring centers, and panel processing centers. It features right-hand (RH) rotation to match standard machine spindle configurations.
What makes the bore quality of this bit better suited for furniture joinery than a standard twist drill?
The bit uses curved, negatively ground spurs that produce exceptionally clear bore walls with no rough edges - a result that standard twist drills typically cannot achieve in composite panel materials. The centre-balanced tip prevents drift on entry, and the plunge edge running to the centre reduces drilling resistance, all of which contribute to cleaner, more consistent holes for dowel connections.
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