CMT 310.020.21 Dowel Drill 2 x 12 x 57.5mm RH is a solid carbide boring bit engineered for precision blind-hole drilling in demanding woodworking and panel processing environments. Built entirely from premium super-micrograin carbide sourced from Ceratizit in Luxembourg, this 2mm diameter, right-hand rotation drill delivers consistently clean bores in hardwood, MDF, particle board, coated panels, and veneered composites. Designed for use on high-speed multi-spindle boring machines and CNC routing centers, it brings industrial-grade reliability to furniture manufacturing, cabinet making, and panel processing applications where bore quality and tool longevity are critical.

Key Features

• Solid super-micrograin carbide construction (HWM) - the entire bit is machined from a single unit of premium carbide, delivering exceptional wear resistance and supporting an almost infinite number of resharpenings to maximize long-term value.
• Curved, negatively ground spurs (2 spurs) - this unique spur geometry produces exceptionally clean bore walls and flat-bottomed holes with no rough edges or tearout, critical for high-quality joinery and visible panel surfaces.
• Centre point balanced tip design - ensures the bit self-centers accurately at the start of each bore, reducing wandering and improving positional accuracy on CNC boring centers and multi-spindle machines.
• Plunge edge extending to the centre of the bit - reduces drilling resistance and increases production speed, so operators can maintain higher feed rates without sacrificing bore quality.
• 2 spiral flutes (Z2) with 12mm cutting height - efficient chip evacuation keeps the bore clean during drilling, reducing heat buildup and extending the interval between sharpenings.
• 10 x 27mm parallel shank with driving flat - provides secure, slip-free seating in standard boring machine chucks and CNC tool holders, ensuring consistent depth and alignment across repeated operations.
• Extreme sharpening rating - the solid carbide body can be resharpened repeatedly without compromising structural integrity, making this bit a durable long-term tooling investment compared to tipped alternatives.
• 57.5mm total length short-series profile - the compact overall length minimizes deflection during high-speed boring, maintaining tight tolerances in close-pitch multi-hole patterns typical of furniture panel drilling.

Why This Product

• When boring into difficult composites such as particle board, MDF, and veneered wood where tearout and rough edges are a common problem, the negatively ground spur geometry of this solid carbide drill produces clean, precise bores that require no secondary cleanup - protecting finished panel surfaces and reducing rework time.
• Solid carbide construction means the bit can be resharpened an almost unlimited number of times, providing a significantly lower total cost of ownership compared to disposable or tipped boring bits in high-volume production environments.
• The 2mm diameter, 57.5mm total length, and 10 x 27mm parallel shank with driving flat are sized and configured for direct use in multi-spindle CNC boring machines and boring centers, eliminating the need for adapters in standard industrial setups.
• Right-hand rotation and a plunge edge running to the centre of the bit combine to reduce drilling resistance at the cutting face, supporting higher production speeds on automated panel processing lines without sacrificing bore wall quality.

Specifications

• Manufacturer Part Number: 310.020.21
• Brand: CMT Orange Tools
• Diameter: 2mm
• Cutting Height: 12mm
• Total Length: 57.5mm
• Shank: 10 x 27mm
• Rotation: Right-hand (RH)
• Number of Spurs: 2
• Number of Cutting Edges: 2
• Blade Material: HWM (solid super-micrograin carbide)
• Sharpening Rating: Extreme

Approved Applications

• Blind hole drilling for dowel connections and joinery
• Panel drilling on multi-spindle CNC boring machines
• Furniture manufacturing and component assembly
• Cabinet making and casework production
• High-speed boring on CNC routing and boring centers
• Drilling hardwood, softwood, particle board, MDF, HDF, plywood, laminates, coated panels, and veneered composites