CMT 314.064.12 Dowel Drill for Through Holes - 1/4" x 35 x 70mm Left-Hand Rotation is a precision-engineered 2-flute carbide-tipped boring tool built for clean, accurate through-hole drilling in panels and solid wood. Designed for use in multi-spindle CNC boring machines and panel processing centers, this left-hand rotation dowel drill cuts through chipboard, MDF, hardwood, and coated panels with consistent results - making it a dependable choice for furniture manufacturing and cabinet production where dowel joint accuracy is critical.

Key Features

• Hardmetal (HW) Cutting Head with Precision-Balanced Centre Point - the carbide tip enters material cleanly and on-center, reducing wandering and producing accurately positioned holes for reliable dowel alignment.
• 2 Precision-Ground Cutting Edges (Z2) - dual flutes distribute cutting load evenly, resulting in smooth bore walls and consistent hole quality across repeated passes in production environments.
• Super-Strength Steel Body - the steel shank and body resist deflection under load, maintaining dimensional accuracy and extending service life even during high-cycle boring operations.
• PTFE-Coated Spiral Flutes - the orange or black PTFE coating on the spiral portion reduces friction and prevents pitch, resin, and glue buildup, keeping the tool running cleanly and reducing downtime for maintenance.
• Parallel Shank with Driving Flat and Length-Adjusting Screw - the 10x26mm shank with driving flat ensures secure, slip-free seating in machine chucks or adapters, and the adjusting screw allows precise depth setting for through-hole consistency.
• Left-Hand (LH) Rotation - engineered specifically for left-hand spindle positions on multi-spindle boring machines, ensuring correct chip ejection direction and clean exit holes on the back face of the panel.
• 35mm Cutting Height on a 70mm Overall Length - the cutting geometry is optimized for through-hole drilling in panels up to the tool's designed capacity, supporting blowout-free exit on the opposite face.

Why This Product

• Engineered for left-hand spindle positions - many multi-spindle CNC boring machines require dedicated left-hand rotation tools for specific spindle locations. Using the correct LH rotation tool ensures proper chip flow and clean hole entry and exit, which an incorrect-rotation tool cannot achieve.
• PTFE-coated spiral minimizes resin and glue adhesion - in furniture and panel manufacturing where adhesive-coated dowels are common, the anti-buildup coating helps maintain consistent performance across long production runs without frequent tool cleaning.
• Precision-balanced HW centre point for repeatable accuracy - tight dowel joint tolerances demand that every hole land exactly on target. The balanced carbide centre point helps ensure positional consistency from the first hole to the last in a production batch.
• Parallel shank with length-adjusting screw supports quick, precise setup - the 10x26mm shank design with driving flat and adjusting screw simplifies tool changes and depth calibration on boring machines, reducing setup time between jobs.

Specifications

• Manufacturer Part Number: 314.064.12
• Brand: CMT Orange Tools
• Diameter: 1/4"
• Cutting Height: 35mm
• Total Length: 70mm
• Shank: 10x26mm (parallel shank with driving flat and length-adjusting screw)
• Number of Flutes: 2
• Blade Material: HW (hardmetal / carbide-tipped)
• Rotation: LH (left-hand)
• Sharpening Style: Through holes 60

Approved Applications

• Through-hole drilling for dowel connections and panel joinery
• Furniture manufacturing and cabinet component processing
• Panel processing in chipboard, MDF, HDF, and coated board
• Boring in hardwood and softwood solid panels
• Use in multi-spindle CNC boring machines requiring left-hand rotation tooling
• Use in CNC boring centers and panel processing centers with appropriate adapters or chucks