CMT Dowel Drill for Through Holes - 5 x 30 x 70mm, Right-Hand Rotation is a solid carbide boring bit engineered for clean, precise through-hole drilling in furniture panels, MDF, hardwood, chipboard, and veneered composites. Built entirely from premium super micrograin carbide, this 5mm diameter drill delivers fast material removal, exceptional bore quality, and extended tool life on multi-spindle CNC boring machines, CNC routers, and high-speed boring centers alike.

Key Features

• Solid super micrograin carbide construction (HW) - the entire bit is formed from a single unit of premium carbide, meaning no brazed joint to fail under heat and load, and it supports an almost limitless number of resharpenings for long-term value.
• Curved, negatively ground spurs at the tip - these uniquely shaped spurs shear fibers cleanly on entry and exit, producing exceptionally clear bore walls with no rough edges or tearout on through-hole cuts.
• Centre-point balanced tip geometry - the balanced centre point keeps the drill tracking on-axis at high feed rates, reducing drift and delivering consistent hole placement across an entire panel run.
• Oversized cylindrical head - the head diameter is larger than traditional boring bit profiles, giving it greater resistance to deflection and prolonged use in demanding production environments.
• Plunge edge extending to the centre of the bit - reduces drilling resistance at initial contact and increases production speed, allowing higher feed rates without compromising hole quality.
• 2 precision-ground cutting edges (Z2) with spiral flutes - twin flutes evacuate chips efficiently and keep the bore clear, preventing heat buildup and maintaining clean cuts through difficult materials like particle board and coated panels.
• 10 x 26mm parallel shank with driving flat - the driving flat locks the bit against rotation in the collet or chuck, preventing slippage under torque and ensuring repeatable depth performance.
• Extreme sharpening rating - classified at the highest sharpening level, this bit holds its edge longer between maintenance cycles, reducing downtime in continuous production settings.
• Right-hand rotation (RH) - compatible with the standard spindle direction of the vast majority of CNC boring machines and multi-spindle boring centers.

Why This Product

• Designed specifically for through-hole applications in panels up to 30mm thick - the 35mm cutting height clears the full material depth without requiring an intermediate pass, keeping cycle times tight in furniture and cabinet production.
• Solid carbide construction from a single piece of super micrograin carbide provides inherent safety advantages over tipped designs - there is no bonded insert to delaminate or loosen under repeated thermal cycling in high-speed boring operations.
• The negatively ground spur geometry is optimized for difficult composites including MDF, particle board, and veneered wood - materials that are notoriously demanding on cutting edge geometry and prone to surface tearout.
• Rated for extreme sharpening, meaning the bit can be professionally reground multiple times before replacement - a meaningful cost-per-hole advantage for shops running large volume dowel and connector boring operations.

Specifications

• Manufacturer Part Number: 314.050.41
• Brand: CMT Orange Tools
• Diameter: 5mm
• Cutting Height: 35mm
• Total Length: 70mm
• Shank: 10 x 26mm
• Number of Teeth: 2
• Rotation: Right-Hand (RH)
• Material: HW (Solid Super Micrograin Carbide)
• Sharpening Rating: Extreme
• Application Type: Through Hole

Approved Applications

• Through-hole dowel boring in furniture panels and cabinet components
• Panel processing on multi-spindle CNC boring machines
• High-speed boring on CNC routers and boring centers
• Drilling hardwood, softwood, and engineered wood composites
• Through-hole drilling in particle board, MDF, HDF, and veneered panels
• Connector and cam-lock hole preparation in flat-pack furniture manufacturing
• Coated panel and laminate boring where exit-face clarity is critical