Product Description
CMT 311.127.11 Dowel Drill - 1/2" x 35 x 70mm Right-Hand by CMT is a precision carbide-tipped boring tool engineered for clean, accurate blind-hole drilling in panel processing and furniture manufacturing applications. With a 1/2" cutting diameter, a 35mm cutting height, and a compact 70mm overall length, this right-hand rotation dowel drill is built for use in multi-spindle CNC boring machines, panel processing centers, and boring machines equipped with an adapter or chuck. The super-strength steel body, PTFE-coated spiral flutes, and tungsten carbide (HW) cutting head make this an ideal choice for demanding production environments working with chipboard, MDF, solid wood, laminates, and coated panels.
Key Features
- Hardmetal (HW) cutting head with precision balanced centre point - delivers accurate hole placement and consistent depth every cycle, reducing rejects in high-volume panel boring operations.
- 2 HW precision ground cutting edges - carbide-tipped construction maintains sharpness through extended production runs in abrasive materials like chipboard, MDF, and laminates.
- 2 negatively ground spurs (V2 sharpening) - score the material perimeter before the main cutters engage, producing clean bore walls and flat-bottom holes with minimal tearout on coated and laminated surfaces.
- 2 spiral flutes with PTFE coating - the orange or black PTFE coating prevents pitch and adhesive buildup in the flute channel, keeping chips clearing freely and reducing cleaning downtime between operations.
- Super-strength steel body - provides the structural rigidity needed to resist deflection during high-cycle boring, helping maintain hole concentricity and positional accuracy.
- Parallel shank (10 x 30mm) with driving flat and length adjusting screw - ensures a secure, repeatable seating in boring machine chucks or adapters, allowing precise depth setting without slippage.
- Right-hand (RH) rotation - compatible with standard right-hand spindle configurations found on the majority of CNC boring centers and multi-spindle machines.
- Long series design (70mm overall length) - the extended body provides the reach needed for deeper blind holes in thicker panel substrates without requiring a tool extension.
Why This Product
- The negatively ground spurs combined with precision-ground HW cutting edges address one of the most common problems in panel boring - tearout and rough hole walls - making this drill well suited for furniture production where visible surfaces must remain clean after assembly.
- The PTFE-coated spiral flutes solve pitch and glue accumulation in production environments where panels with adhesive coatings are processed repeatedly, reducing the frequency of tool cleaning and maintaining consistent cutting performance over time.
- At 70mm overall length with a 35mm cutting height, this long-series dowel drill reaches deeper blind holes than standard-length counterparts, giving woodworking and cabinet shops the versatility to handle thicker panel stock without changing to a specialty tool.
- The parallel shank with driving flat and length adjusting screw provides a positive, slip-resistant connection to boring machine spindles, making depth repeatability straightforward across large production batches where hole-to-hole consistency is critical for dowel alignment.
Specifications
- Manufacturer Part Number: 311.127.11
- Brand: CMT Orange Tools
- Diameter: 1/2"
- Cutting Height: 35mm
- Total Length: 70mm
- Shank: 10 x 30mm (parallel shank with driving flat and length adjusting screw)
- Number of Flutes: 2
- Number of Spurs: 2
- Number of Teeth: 2
- Spur Sharpening: Negatively ground spurs
- Blade Material: HW (Hardmetal / Tungsten Carbide)
- Rotation: Right-hand (RH)
- Coating: PTFE (orange or black) on spiral portion
Approved Applications
- Blind hole drilling for dowel joinery connections
- Panel drilling in furniture manufacturing
- Cabinet making and case goods production
- CNC boring center operations
- Multi-spindle boring machine applications
- Panel processing center operations
- Boring machine applications using an adapter or chuck
- Drilling in chipboard, MDF, HDF, hardwood, softwood, plywood, laminates, and coated panels
Frequently Asked Questions
What type of holes does this dowel drill produce - through holes or blind holes?
This drill is designed for blind hole drilling. The precision balanced centre point and negatively ground spurs work together to produce flat-bottom blind holes suited to dowel joinery, where the fastener sits fully recessed within the panel without breaking through the opposite face.
What machines is this dowel drill compatible with?
The 10 x 30mm parallel shank with driving flat is designed for multi-spindle CNC boring machines, CNC boring centers, panel processing centers, and boring machines equipped with a compatible adapter or chuck. The driving flat and length adjusting screw allow secure, repeatable depth setting in these spindle types.
What is the PTFE coating on the spiral flutes and why does it matter?
The spiral portion of this drill is coated with PTFE (available in orange or black). PTFE is a non-stick coating that prevents pitch, resin, and adhesive from accumulating in the flute channel during cutting. This helps keep chips evacuating cleanly, maintains cutting performance over extended use, and reduces the need for frequent tool cleaning - particularly important when processing coated or laminated panels.
Can this drill be used on solid wood as well as engineered panels?
Yes. The HW (tungsten carbide) cutting head and precision-ground negatively set spurs are suited for a range of wood-based materials including hardwood, softwood, chipboard, MDF, HDF, plywood, laminates, and coated panels. The carbide construction handles the abrasive nature of engineered wood products while also performing cleanly in solid wood species.
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