CMT 308.120.11 Dowel Drill - 15/32" x 1-3/16" x 2-17/64" RH is a precision-engineered carbide-tipped boring tool from CMT, purpose-built for clean, flat-bottom blind hole drilling in solid wood, chipboard, MDF, laminates, and coated panels. With a 12mm cutting diameter, a 30mm cutting height, and a compact 57.5mm overall length, this right-hand rotation dowel drill is optimized for use in multi-spindle CNC boring machines, panel processing centers, and boring machines equipped with an adapter or chuck. The negatively ground spurs and twin-flute geometry deliver precise bore walls with minimal tearout, making this drill a reliable choice wherever accurate dowel hole placement and surface quality are essential in furniture manufacturing and panel joinery operations.

Key Features

• Carbide-Tipped (HW) Construction - tungsten carbide cutting edges deliver extended tool life and consistent performance across demanding production runs in hardwood, softwood, chipboard, MDF, and laminates, reducing downtime from frequent bit replacement.
• Negatively Ground Spurs - the precision-sharpened, negatively set spurs score the material cleanly at the perimeter of the hole before the center cuts, producing flat-bottom blind holes with smooth, tear-free bore walls and sharp, clean entry edges.
• 2-Flute, 2-Spur Geometry - the twin-flute design efficiently evacuates chips from the bore during drilling, reducing heat buildup and keeping the cutting zone clear for accurate, repeatable hole quality in panel processing applications.
• 10x20mm Parallel Shank with Driving Flat - the standardized shank dimension ensures secure, positive drive engagement in multi-spindle boring heads and CNC boring centers, eliminating slippage and maintaining precise positional accuracy hole after hole.
• Right-Hand (RH) Rotation - configured for standard right-hand spindle direction, making this drill directly compatible with the vast majority of industrial boring machines and CNC panel processing centers without any special setup.
• Compact Short Series Profile (57.5mm Overall Length) - the short overall length minimizes deflection during high-cycle boring operations, contributing to tighter hole tolerance and straighter, more consistent blind bores in production panel work.

Why This Product

• The negatively ground spurs produce clean, splinter-free entry and flat-bottom blind holes - a critical requirement in furniture panel drilling where visible surfaces must remain undamaged and dowel joints must seat precisely.
• The 10x20mm parallel shank with driving flat is a widely used industrial standard, meaning this bit drops directly into most multi-spindle CNC boring heads and panel processing centers without adapters or modification.
• The 12mm (15/32") diameter and 30mm (1-3/16") cutting height address one of the most common dowel drilling size requirements in cabinet and furniture production, supporting standard 12mm dowel joinery used throughout the industry.
• The HW carbide material grade is specifically suited to the abrasive conditions of chipboard, MDF, and laminates - materials that rapidly dull high-speed steel tools - giving this drill a meaningful service life advantage in panel processing environments.

Specifications

• Manufacturer Part Number: 308.120.11
• Brand: CMT Orange Tools
• Product Type: Dowel Drill
• Diameter: 12mm (15/32")
• Cutting Height: 30mm (1-3/16")
• Total Length: 57.5mm (2-17/64")
• Shank: 10x20mm
• Number of Flutes: 2
• Number of Spurs: 2
• Spur Sharpening: Negatively ground spurs
• Blade Material: HW (Tungsten Carbide)
• Rotation: Right-hand (RH)

Approved Applications

• Chipboard and particle board panels
• MDF (medium-density fiberboard)
• HDF (high-density fiberboard)
• Solid hardwood and softwood
• Plywood
• Laminates and coated panels
• Blind hole dowel drilling in furniture and cabinet panel joinery
• Multi-spindle CNC boring machine operations
• CNC boring center panel processing
• Boring machines equipped with an adapter or chuck