CMT 306.120.11 Dowel Drill 12 x 30 x 55.5mm RH by CMT is a precision-engineered boring tool built for high-speed blind hole drilling in panel processing and furniture production environments. Designed with a hardmetal (HW) tipped head and a balanced centre point, this right-hand rotation dowel drill delivers consistently clean, flat-bottomed holes for dowel joinery in solid wood, chipboard, MDF, and coated panels. Whether you are running a multi-spindle CNC boring machine or a panel processing centre, this 12mm dowel drill is sized and specified to perform reliably at production speeds where hole quality and tool longevity are both critical.

Key Features

• Super-strength steel body with HW (hardmetal) head - provides exceptional wear resistance during high-cycle CNC boring operations, reducing downtime from tool changes and extending service life across demanding production runs.
• Precision balanced centre point - ensures accurate hole placement and a flat-bottomed bore, which is essential for consistent dowel seating in furniture assembly and cabinet making.
• 2 HW precision ground cutting edges (Z2) - deliver clean, repeatable cuts through chipboard, MDF, hardwood, and laminates while maintaining dimensional accuracy across the full 30mm cutting height.
• 2 negatively ground spurs (V2) - score the material cleanly before the cutting edges engage, minimising tear-out on the bore wall and producing smooth entry points in coated panels and laminates where surface quality matters.
• Right-hand (RH) rotation - compatible with standard CNC boring spindles and multi-spindle boring machines configured for conventional right-hand tooling, simplifying setup and machine compatibility.
• 8 x 20mm parallel shank - fits standard boring head chucks and adapters used on CNC boring centres and panel processing equipment, ensuring secure tool holding during high-speed operation.
• Resharpenable design - the HW cutting head and precision-ground geometry allow multiple resharpenings, reducing long-term tooling cost per hole over the life of the drill.

Why This Product

• The combination of 2 precision ground HW cutting edges and 2 negatively ground spurs makes this drill particularly effective for boring blind holes in coated panels and laminates, where tear-out and surface damage at the bore entry are common problems with lower-quality tooling.
• At 55.5mm total length with a 30mm cutting height, this short-series drill is optimised for the tight spindle-to-spindle spacing found on multi-spindle CNC boring machines used in high-volume furniture and cabinet production.
• The resharpenable HW head means this tool continues to perform across many resharpening cycles rather than being discarded after initial wear, making it a practical choice for shops focused on reducing tooling cost over time.
• With a precisely balanced centre point, this drill produces flat-bottomed blind holes that seat dowels consistently, reducing assembly variation and improving joint quality in production furniture manufacturing.

Specifications

• Manufacturer Part Number: 306.120.11
• Brand: CMT Orange Tools
• Diameter: 12mm
• Cutting Height: 30mm
• Total Length: 55.5mm
• Shank: 8 x 20mm
• Rotation: Right-hand (RH)
• Number of Cutting Edges: 2 (Z2)
• Number of Spurs: 2 (V2)
• Spur Sharpening: Negatively ground spurs
• Blade Material: HW (hardmetal / carbide-tipped)

Approved Applications

• Blind hole drilling for dowel connections in panel furniture production
• Panel drilling on CNC boring centres and multi-spindle boring machines
• Cabinet making and case construction requiring precise dowel alignment
• Furniture manufacturing in solid wood, chipboard, MDF, HDF, plywood, and coated panels
• Boring in laminates and surface-coated panels where clean bore entry is required