CMT 314.100.12 Dowel Drill for Through Holes - 10 x 35 x 70mm Left-Hand Rotation is a precision-engineered, carbide-tipped boring tool built for clean, accurate through-hole drilling in furniture panels and cabinetry components. Designed for left-hand (LH) rotation, this 10mm diameter drill features a two-flute spiral design and a hardmetal (HW) cutting head, making it the right choice for high-volume dowel connection work on chipboard, MDF, hardwood, and coated panels. The PTFE-coated spiral body resists pitch and adhesive buildup, keeping the tool running cleanly cycle after cycle.

Key Features

• Hardmetal (HW) cutting head with precision balanced centre point - delivers accurate hole placement and consistent bore quality, reducing setup time and scrap in production environments.
• 2 precision-ground cutting edges (Z2) - dual flute geometry produces clean bore walls with minimal tearout on both entry and exit surfaces, protecting the face of finished panels.
• 2 spiral flutes - efficiently evacuate chips from the bore, preventing clogging and reducing heat buildup during continuous through-hole drilling operations.
• PTFE-coated spiral portion (orange or black) - the non-stick coating prevents pitch and glue from adhering to the flutes, extending tool life and reducing cleaning downtime between production runs.
• Super-strength steel body - provides rigidity and resistance to flexing under load, supporting precise hole geometry even during high-cycle boring machine use.
• Parallel shank (10 x 26mm) with driving flat and length adjusting screw - ensures a secure, repeatable seating position in multi-spindle boring machines and CNC boring centres, reducing tool slip and positioning error.
• Left-hand (LH) rotation - engineered specifically for LH spindle positions on multi-spindle boring machines, maintaining correct cutting geometry where a right-hand drill would produce poor results.
• 70mm total length with 35mm cutting height - the long-series configuration handles panels up to approximately 30mm thick, covering standard furniture panel stock in a single pass.

Why This Product

• Built specifically for through-hole dowel connections, this drill produces clean entry and exit bores without blowout - a critical requirement in furniture manufacturing where both panel faces are visible in the finished product.
• The LH rotation designation makes this drill a direct solution for left-hand spindle positions on multi-spindle CNC boring machines and panel processing centres, where using the wrong rotation direction compromises cut quality.
• The PTFE-coated spiral and hardmetal tip combination addresses two of the most common causes of boring tool degradation - adhesive buildup and tip wear - helping maintain consistent hole quality over extended production runs.
• The 10 x 26mm parallel shank with driving flat and length adjusting screw provides a direct, tool-free interface with standard boring machine chucks, supporting fast changeovers and repeatable depth settings in high-throughput panel operations.

Specifications

• Manufacturer Part Number: 314.100.12
• Brand: CMT Orange Tools
• Diameter: 10mm
• Cutting Height: 35mm
• Total Length: 70mm
• Shank: 10 x 26mm (parallel shank with driving flat and length adjusting screw)
• Number of Teeth: 2
• Rotation: Left-Hand (LH)
• Blade Material: HW (Hardmetal / Carbide-Tipped)
• Sharpening: Through holes 60

Approved Applications

• Drilling through holes for dowel connections in panel-based furniture and cabinet assembly
• Through-hole boring on multi-spindle CNC boring machines and boring centres
• Panel processing on CNC boring centres and panel processing centres
• Through-hole drilling in chipboard, MDF, HDF, hardwood, softwood, plywood, laminates, and coated panels
• High-volume furniture manufacturing operations requiring repeatable, clean through-bores