CMT 367.050.11 Dowel Drill for Through Holes is a short-series, two-flute carbide-tipped boring bit engineered for clean, precise through-hole drilling in solid wood, chipboard, MDF, laminates, and coated panels. With a 5mm (13/64 in.) cutting diameter, 30mm (1 3/16 in.) cutting height, and a robust 8x20mm parallel shank with driving flat, this right-hand rotation dowel drill is purpose-built for multi-spindle CNC boring machines, CNC boring centers, and panel processing equipment where repeatable accuracy and blowout-free exit holes are essential. The HW (tungsten carbide) cutting material delivers long tool life even in abrasive sheet goods, making it a reliable choice for high-volume cabinet, furniture, and millwork production.

Key Features

• Tungsten Carbide (HW) Cutting Material - hard carbide tips maintain a sharp cutting edge far longer than high-speed steel alternatives, reducing downtime for tool changes during production runs on chipboard, MDF, HDF, hardwood, softwood, plywood, laminates, and coated panels.
• Two-Flute Geometry - dual cutting edges share the chip load evenly, producing smooth bore walls and flat-bottomed through holes while evacuating chips efficiently to keep the hole clean on exit.
• Through-Hole Short Series Design - the compact 56mm (2 13/16 in.) overall length minimizes deflection and vibration during boring, contributing to hole-location accuracy across multi-spindle operations.
• Right-Hand (RH) Rotation - matches the standard spindle direction of the vast majority of CNC boring machines and boring centers, allowing direct drop-in use without adapter changes.
• 8x20mm Parallel Shank with Driving Flat - the driving flat provides positive torque transfer in quick-change chucks and adapter collets, preventing shank slip during heavy through-hole passes.
• Through-Hole Sharpening Geometry (60 deg.) - the 60 deg. point angle is optimized specifically for through-hole drilling, helping prevent fiber tearout and blowout on the exit face of the workpiece.

Why This Product

• The 60 deg. through-hole point geometry addresses one of the most common quality problems in panel processing - exit-face blowout - delivering cleaner holes on laminates and coated panels where surface quality is critical.
• With a 5mm cutting diameter and 30mm cutting height, this bit matches the dowel hole dimensions required for standard 5mm furniture connector hardware and shelf-pin layouts, making it a direct fit for cabinet and case-goods production workflows.
• The short-series format (56mm overall length) is specifically suited to the tight spindle spacing found on multi-spindle CNC boring machines and boring centers, where a longer bit would create interference or runout issues.
• HW carbide construction means the bit retains its edge through extended production cycles on abrasive materials like MDF and HDF, reducing per-hole tooling cost compared to less wear-resistant alternatives.

Specifications

• Manufacturer Part Number: 367.050.11
• Brand: CMT Orange Tools
• Product Type: Dowel Drill for Through Holes
• Series: Through Hole Short Series
• Diameter: 5mm (13/64 in.)
• Cutting Height: 30mm (1 3/16 in.)
• Total Length: 56mm (2 13/16 in.)
• Shank: 8x20mm
• Number of Flutes: 2
• Blade Material: HW (Tungsten Carbide)
• Rotation: Right-Hand (RH)
• Sharpening Angle: 60 deg. (through holes)

Approved Applications

• Chipboard and particleboard panels
• MDF and HDF sheet goods
• Hardwood and softwood solid stock
• Plywood
• Laminates and coated panels
• Through-hole dowel boring in cabinet and furniture panels
• Shelf-pin and connector-hardware hole layouts