CMT 311.013.20 Dowel Drill - 1.3 x 5 x 70mm RH/LH is a solid carbide boring bit engineered for precision dowel hole drilling in furniture panels, cabinet components, and engineered wood products. Built entirely from premium super micrograin carbide, this long-series drill delivers consistently clean, flat-bottomed bores in chipboard, MDF, hardwood, plywood, laminates, and coated panels - making it a reliable choice for high-volume boring operations on CNC machining centers and multi-spindle boring units alike. Its dual right-hand and left-hand rotation compatibility gives it exceptional versatility across a wide range of panel processing equipment configurations.

Key Features

• Solid super micrograin carbide construction (HWM material) - the entire drill body is carbide, not just the tip, providing a far greater number of resharpenings over the tool's lifetime and reducing long-term tooling cost in high-production environments.
• 2 curved, negatively ground spurs (V2) - produce exceptionally clean bore walls and crisp, splinter-free entry points even in veneered panels and coated surfaces, minimizing rework and scrap.
• Centre-point balanced tip geometry - keeps the drill tracking true from the moment of engagement, improving bore-to-bore positional accuracy across multi-spindle setups and CNC boring centers.
• Plunge edge extending to the centre of the bit - reduces drilling resistance and increases production speed, so the tool moves through material faster with less load on the machine spindle.
• 2 cutting edges and 2 HWM spiral flutes (Z2) - efficient chip evacuation keeps the bore clear during cutting, preventing heat buildup and maintaining clean hole quality throughout extended production runs.
• Parallel shank with driving flat - 10 x 45mm - ensures secure, repeatable seating in standard boring machine chucks and adapters, eliminating slippage under load.
• Right-hand and left-hand rotation compatibility (RH/LH) - a single tool serves both clockwise and counterclockwise spindles, reducing the number of separate tools required for mixed-head boring machines.
• 1.3mm diameter with 5mm cutting height and 70mm total length (long series) - the extended overall length allows for deeper reach into panels and multi-layer workpieces where standard-length drills cannot access the target depth.

Why This Product

• For furniture manufacturers and cabinet shops drilling thousands of dowel holes per shift, the solid carbide body offers a substantially longer interval between sharpenings compared to carbide-tipped designs - keeping machines running and downtime minimal.
• The 1.3mm diameter long-series format (70mm overall length) addresses panel preboring applications where a compact cutting diameter combined with extended reach is required - a combination not covered by standard short-series bits.
• Dual RH/LH rotation means the same drill stock works across opposing-spindle boring heads and reversible CNC router spindles, simplifying tool inventory for shops running multiple machine types.
• The negatively ground curved spurs and centre-balanced tip geometry make this bit particularly well suited to veneered panels and coated boards where surface tearout at entry or exit is unacceptable in finished furniture components.

Specifications

• Manufacturer Part Number: 311.013.20
• Brand: CMT Orange Tools
• Diameter: 1.3mm
• Cutting Height: 5mm
• Total Length: 70mm
• Shank: 10 x 45mm (parallel shank with driving flat)
• Number of Spurs: 2
• Number of Teeth: 2
• Number of Flutes: 2
• Rotation: Right-Hand and Left-Hand (RH/LH)
• Material: HWM (solid super micrograin carbide)
• Series: Long Series

Approved Applications

• Panel preboring for dowel connections
• Blind hole drilling in furniture panels and cabinet components
• Dowel joint drilling in solid hardwood
• Boring in particle board and chipboard
• Drilling in MDF and HDF
• Processing veneered panels and coated boards
• High-speed multi-spindle boring machine operations
• CNC router and CNC boring center applications