Product Description
CMT Four Flute Dowel Drill - 5 x 50 x 85mm Right-Hand by CMT is a precision-engineered boring tool built for clean, accurate dowel holes in solid wood, chipboard, MDF, laminates, and coated panels. Featuring a tungsten carbide (HW) cutting head, 4 spiral flutes for rapid chip evacuation, and a PTFE-coated body to resist pitch and adhesive buildup, this long-series drill delivers flat-bottom blind holes with smooth bore walls in high-volume furniture manufacturing, cabinet making, and panel processing applications.
Key Features
- Tungsten Carbide (HW) Cutting Head - provides exceptional hardness and edge retention, reducing the frequency of tool changes in demanding production environments.
- Precision-Balanced Centre Point - ensures the drill seats accurately at the start of each bore, eliminating walk and producing consistently positioned dowel holes.
- 2 Precision-Ground HW Cutting Edges (Z2) - deliver smooth, true-diameter cuts that create clean, flat-bottom holes suitable for tight-tolerance dowel joinery.
- 2 Negatively Ground Spurs (V2) - score the material perimeter cleanly before the cutting edges engage, virtually eliminating tearout and surface chipping on laminates and coated panels.
- 4 Spiral Flutes - accelerate chip and dust evacuation from deep blind holes, helping maintain cut quality and reducing heat buildup during continuous operation.
- PTFE Coating on the Cutter Portion - acts as a non-stick barrier against pitch, resin, and glue, keeping the tool clean and extending service life between sharpenings.
- Super-Strength Steel Body - supports the carbide head under the high radial loads of multi-spindle boring, providing the rigidity needed for repeatable hole geometry.
- 10 x 27mm Parallel Shank with Driving Flat and Length-Adjusting Feature - fits standard boring machine collets and chucks securely, with a driving flat to prevent slippage and length adjustment capability for precise depth setting.
- Right-Hand (RH) Rotation - compatible with conventional right-hand spindle boring machines, CNC boring centers, and multi-spindle panel processing equipment.
Why This Product
- Engineered for deep blind-hole boring - the 50mm cutting height and 85mm overall length give this drill the reach needed for deep blind holes where shorter standard-series drills cannot achieve the required depth without bottoming the shank.
- Cleaner results in coated and laminated panels - the negatively ground spurs score the surface before the carbide edges cut, making this drill a practical choice for furniture panels where surface tearout is unacceptable.
- Reduced downtime from pitch and adhesive buildup - the PTFE-coated spiral keeps the tool running cleanly in glued-up, resin-rich, or adhesive-coated materials, meaning fewer cleaning stops during production runs.
- Versatile machine compatibility - the 10 x 27mm parallel shank with driving flat and length-adjusting design fits a broad range of boring machine chucks and adapters, making this drill a practical fit for multi-spindle CNC boring machines and manual boring centers alike.
Specifications
- Manufacturer Part Number: 373.050.11
- Brand: CMT Orange Tools
- Description: DOWEL DRILL 5x50x85mm RH
- Diameter: 5mm
- Cutting Height: 50mm
- Total Length: 85mm
- Shank: 10x27mm
- Rotation: RH (Right-Hand)
- Number of Flutes: 4
- Number of Cutting Edges: 2
- Number of Spurs: 2
- Sharpening: Negatively ground spurs
- Blade Material: HW (Tungsten Carbide)
Approved Applications
- Drilling blind holes for dowel connections and dowel joinery
- Panel drilling in furniture manufacturing
- Cabinet making and casework production
- Boring in solid wood, chipboard, MDF, HDF, plywood, laminates, and coated panels
- Multi-spindle CNC boring machine operations
- CNC boring center and panel processing center applications
- Boring machines equipped with an adapter or chuck
Frequently Asked Questions
What is the difference between this long-series dowel drill and a standard-length version?
This drill has an 85mm total length with a 50mm cutting height, making it a long-series tool. That additional reach allows it to bore deeper blind holes without the shank contacting the workpiece surface, which is required in certain furniture and panel applications where standard-length drills cannot achieve sufficient depth.
Why does this drill have 4 flutes if it only has 2 cutting edges?
The 4 spiral flutes are dedicated to chip and dust evacuation, while the 2 HW precision-ground cutting edges perform the actual cutting. This separation of functions allows the drill to clear material quickly from deep blind holes while still maintaining the precise, clean cut geometry produced by the carbide cutting edges.
What does the PTFE coating on the cutter portion do?
The PTFE coating on the spiral creates a non-stick surface that resists pitch, resin, and glue accumulation. In materials like chipboard, MDF, and adhesive-coated panels, this coating helps keep the tool clean during extended use, reducing buildup that would otherwise increase friction, heat, and surface quality problems.
Are the spurs re-sharpenable?
Yes. The product data specifies that the spurs are negatively ground, which is a sharpening geometry designed to produce clean bore-wall entry cuts. This geometry can be re-sharpened to restore tool performance, extending the usable service life of the drill.
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