Product Description
The CMT 311.160.11 Dowel Drill - 16 x 35 x 70mm Right-Hand is a precision-engineered 2-flute boring tool built for accurate dowel hole drilling in furniture panels, cabinet components, and solid wood assemblies. Manufactured by CMT, this right-hand rotation drill features a tungsten carbide (HW) cutting head, negatively ground spurs, and a PTFE-coated spiral body - making it a reliable choice for clean, flat-bottom blind holes in chipboard, MDF, hardwood, and coated panels. The long 70mm overall length suits applications where deeper tool reach is required on multi-spindle boring machines and CNC panel processing centers.
Key Features
- 2-flute HW (tungsten carbide) cutting head - hard carbide edges stay sharp longer than standard HSS tools, reducing replacement frequency during high-volume panel boring runs.
- 2 negatively ground spurs (V2 configuration) - score the material perimeter cleanly before the main cutters engage, producing flat-bottom holes with minimal tearout on laminates and coated panel surfaces.
- PTFE-coated spiral flutes - the orange or black PTFE coating prevents pitch and adhesive buildup on the flute surface, reducing friction and keeping chips clearing freely during continuous boring cycles.
- Super-strength steel body - the steel shank and spiral body resist flex and vibration during operation, contributing to consistent bore diameter and hole position accuracy.
- Precision balanced centre point - self-centers on the panel surface at entry, eliminating walk and ensuring holes are drilled exactly on layout - critical for dowel joinery alignment.
- 10 x 30mm parallel shank with driving flat and length adjusting screw - the driving flat prevents shank rotation in the collet, while the adjusting screw allows precise boring depth setting on multi-spindle heads.
- Right-hand (RH) rotation - compatible with the standard spindle direction of the vast majority of industrial boring machines and CNC boring centers.
- 70mm overall length (long series) - provides additional clearance for deep-reach boring applications or where the spindle housing requires extra tool projection.
Why This Product
- For furniture and cabinet manufacturers requiring consistent dowel registration, the precision balanced centre point and negatively ground spurs work together to deliver clean entry and a flat bore bottom - exactly what dowel joint integrity depends on.
- The PTFE spiral coating addresses a common production problem - resin and glue accumulation on drill flutes - by actively repelling buildup, which means less downtime for cleaning and more consistent hole quality across long production runs.
- With a 16mm cutting diameter, 35mm cutting height, and a 10 x 30mm shank designed with both a driving flat and a length adjusting screw, this bit installs and sets up quickly on multi-spindle boring heads without improvised shimming or guesswork.
- The HW carbide construction paired with 2 precision ground cutting edges makes this drill suitable for abrasive engineered sheet goods - chipboard, MDF, HDF, and laminates - that wear standard steel tooling rapidly in production environments.
Specifications
- Manufacturer Part Number: 311.160.11
- Brand: CMT Orange Tools
- Description: Dowel Drill 16 x 35 x 70mm RH
- Diameter: 16mm
- 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
- Spur Grind: Negatively ground spurs
- Blade Material: HW (tungsten carbide)
- Rotation: Right-hand (RH)
- PTFE Coating: Spiral portion coated with orange or black PTFE
Approved Applications
- Blind hole drilling for dowel connections and dowel joinery
- Panel drilling on chipboard, MDF, and HDF sheet goods
- Furniture manufacturing and cabinet making
- Boring in solid hardwood and softwood
- Drilling laminates, coated panels, and plastics
- Use in multi-spindle CNC boring machines and CNC boring centers
- Use in panel processing centers and boring machines equipped with a compatible adapter or chuck
Frequently Asked Questions
What shank size does this dowel drill use, and will it fit my boring machine?
This drill uses a 10 x 30mm parallel shank with a driving flat and a length adjusting screw. The driving flat locks the bit against rotation inside the spindle, and the adjusting screw allows accurate depth setting. This is a standard configuration for most multi-spindle boring heads, CNC boring centers, and panel processing centers. Verify that your machine accepts a 10mm parallel shank before installing.
What materials can this 16mm dowel drill bore through?
The HW (tungsten carbide) cutting head and precision ground edges make this drill suitable for chipboard, MDF, HDF, solid hardwood, softwood, plywood, laminates, coated panels, and plastics. The PTFE-coated flutes help manage chip evacuation and resist resin buildup when drilling through adhesive-bearing or resin-rich materials.
What is the purpose of the negatively ground spurs on this drill?
The 2 negatively ground spurs (V2) score the circumference of the hole before the main cutting edges remove material. This pre-scoring action severs the surface fibers cleanly, which minimizes tearout and chipping at the hole opening - particularly important when boring through laminates, veneered panels, or coated surfaces where surface quality directly affects finished product appearance.
What does the PTFE coating on the spiral portion do?
The orange or black PTFE coating applied to the spiral flutes reduces surface friction and actively resists adhesion of pitch, resin, and glue particles. In production environments where continuous boring generates heat and brings the tool into contact with adhesive-bonded sheet goods, the PTFE coating helps maintain consistent chip clearance and extends the interval between tool cleaning or replacement.
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