CMT Dowel Drill for Through Holes - 6 x 27 x 57.5mm Left-Hand Rotation is a precision-engineered, 2-flute boring tool built for clean, blowout-free through-hole drilling in furniture manufacturing, panel processing, and dowel joinery applications. Crafted from super-strength steel with a tungsten carbide (HW) cutting head, this left-hand rotation drill produces accurate, consistent bores in chipboard, MDF, hardwood, softwood, plywood, and coated panels. The PTFE-coated spiral and precision-balanced centre point make it a reliable choice for multi-spindle boring machines and CNC boring centres wherever repeatable dowel-hole quality is required.

Key Features

• Hard Metal (HW) Carbide Cutting Head - tungsten carbide construction delivers long-lasting edge retention in abrasive sheet goods like MDF and chipboard, reducing regrind frequency and downtime.
• 2 Precision-Ground Cutting Edges (Z2) - dual cutting edges ensure balanced load distribution on every revolution, producing smooth, round bore walls and minimising tool deflection.
• 2 Spiral Flutes with PTFE Coating - the orange or black PTFE coating on the spiral portion prevents pitch and glue buildup, keeping the flutes clear and maintaining consistent chip evacuation during production runs.
• Precision-Balanced Centre Point - keeps the drill centred on entry for accurate hole placement, which is critical in dowel joinery where alignment tolerances are tight.
• Through-Hole Geometry - specifically designed for drilling completely through the panel, eliminating blowout on exit and producing clean, well-defined openings on both faces.
• Left-Hand (LH) Rotation - engineered for left-hand spindle positions on multi-spindle boring heads, making it compatible with machines that require opposing-rotation drills to complete a full row of bores.
• Parallel Shank with Driving Flat and Length-Adjusting Screw - the 10 x 26mm shank seats securely in standard boring machine chucks or adapters, and the adjusting screw allows fine-tuning of drilling depth without removing the tool.
• Super-Strength Steel Body - the steel body absorbs vibration and handles the lateral forces of production drilling, supporting the carbide head and extending overall tool life.

Why This Product

• The through-hole geometry paired with the precision-balanced centre point addresses one of the most common defects in panel boring - blowout and off-centre entry - giving clean results on both faces of the workpiece without secondary finishing.
• PTFE coating on the spiral directly reduces non-cutting downtime caused by pitch and adhesive buildup, keeping tools running longer between cleanings during high-volume furniture and panel production.
• Left-hand rotation fills a specific machine requirement: multi-spindle boring heads use both LH and RH drills simultaneously, and this drill is purpose-built for those LH spindle positions so a matching tool is always available.
• The 10 x 26mm parallel shank with driving flat and length-adjusting screw offers a secure, adjustable fit in boring machine chucks and adapters, reducing setup time when changing drilling depths across different panel thicknesses.

Specifications

• Manufacturer Part Number: 313.060.12
• Brand: CMT Orange Tools
• Diameter: 6mm
• Cutting Height: 27mm
• Total Length: 57.5mm
• Shank: 10 x 26mm (parallel shank with driving flat)
• Number of Flutes: 2
• Blade Material: HW (Hard Metal Carbide)
• Rotation: LH (Left-Hand)
• Sharpening: Through holes 60

Approved Applications

• Drilling through holes for dowel connections in furniture components
• Panel processing in production environments
• Furniture manufacturing with multi-spindle boring machines
• CNC boring centres and panel processing centres
• Boring machines fitted with an adapter or chuck