The CMT 308.127.11 Dowel Drill is a 1/2" diameter, right-hand rotation carbide-tipped boring tool built for clean, flat-bottom blind holes in solid wood, chipboard, MDF, laminates, and coated panels. With a compact 57.5mm overall length and a 10x20mm parallel shank, this short-series dowel drill is engineered for use in multi-spindle CNC boring machines, panel processing centers, and CNC boring centers where precision and repeatability matter. The negatively ground spurs and twin-flute geometry produce smooth bore walls with minimal tearout, making this bit a reliable choice for cabinet construction, furniture manufacturing, and panel joinery applications.

Key Features

• Tungsten Carbide (HW) Cutting Material - hard carbide maintains a sharp edge through high-volume production runs in abrasive materials like MDF, chipboard, and laminates, reducing downtime between sharpenings.
• Negatively Ground Spurs - the precision-ground spur geometry shears fibers cleanly at the perimeter of the bore, producing flat-bottom holes with crisp, tear-free walls ideal for dowel and shelf-pin joinery.
• 2-Flute, 2-Spur Configuration - dual flutes clear chips efficiently while twin spurs score the cut perimeter simultaneously, balancing cutting speed with surface quality in both solid wood and panel products.
• 30mm Cutting Height - sufficient depth capacity for standard blind-hole dowel applications, allowing full engagement without over-penetrating thin panels or workpieces.
• 10x20mm Parallel Shank - the rectangular driving flat on the shank provides positive mechanical engagement in multi-spindle boring heads, preventing slip under load and ensuring consistent hole placement.
• Short-Series Length (57.5mm Overall) - the compact body reduces vibration and deflection at high spindle speeds, contributing to tighter positional accuracy across a CNC boring grid.
• Right-Hand Rotation - matches the standard tooling orientation of the vast majority of CNC boring centers and multi-spindle machines, ensuring straightforward drop-in compatibility.

Why This Product

• Flat-bottom blind holes are a critical requirement in dowel joinery and shelf-pin drilling - the negatively ground spur design of this bit delivers the clean bore geometry needed to seat dowels flush and secure without rework.
• The 1/2" diameter covers one of the most common fractional-inch dowel and shelf-pin sizes, making this bit directly applicable to a wide range of cabinet and furniture production setups without the need for special tooling adapters.
• Carbide (HW) construction extends tool life significantly when boring abrasive engineered materials such as MDF, HDF, and melamine-coated chipboard - materials that rapidly dull high-speed steel alternatives.
• The 10x20mm parallel shank with driving flat is the industry-standard interface for multi-spindle boring heads and CNC boring centers, so this drill integrates directly into existing machine setups without modification.

Specifications

• Manufacturer Part Number: 308.127.11
• Brand: CMT Orange Tools
• Product Type: Dowel Drill
• Diameter: 1/2"
• Cutting Height: 30mm
• Total Length: 57.5mm
• Shank: 10x20mm
• Number of Teeth: 2
• Number of Spurs: 2
• Sharpening Style: Negatively ground spurs
• Rotation: Right-hand (RH)
• Blade Material: HW (Tungsten Carbide)

Approved Applications

• Solid hardwood and softwood
• Chipboard and particleboard
• MDF and HDF
• Plywood
• Laminates and melamine-coated panels
• Coated panels
• Blind-hole dowel drilling
• Shelf-pin hole boring