Product Description
CMT Four Flute Dowel Drill - 10 x 50 x 85mm Right-Hand by CMT is a long-series boring tool engineered for precision dowel hole drilling in solid wood, chipboard, MDF, laminates, and coated panels. With a 10mm diameter, 50mm cutting height, and 85mm overall length, this right-hand rotation drill delivers clean, flat-bottom blind holes with minimal tearout - making it a reliable choice for furniture manufacturing, cabinet making, and panel processing operations. The four spiral flutes promote faster chip evacuation from deep holes, keeping the cut clean and reducing heat buildup at the cutting edge.
Key Features
- Tungsten Carbide (HW) Cutting Head - the precision-ground carbide construction maintains sharp edges longer than standard steel, reducing downtime for resharpening in high-volume production environments.
- 2 HW Precision-Ground Cutting Edges (Z2) - dual carbide cutting edges ensure accurate bore diameter and consistent hole depth across repeated passes in solid wood, chipboard, and MDF.
- 2 Negatively Ground Spurs (V2) - negatively set spurs score the material perimeter before the cutting edges engage, producing clean bore walls and flat-bottom holes with no rough edges or fiber tearout on laminates and coated panels.
- Four Spiral Flutes - four flutes provide faster chip evacuation compared to two-flute designs, keeping deep blind holes clear of debris and reducing the risk of burning or clogging in dense materials like HDF and hardwood.
- PTFE-Coated Cutter Portion - the black or orange PTFE coating on the spiral prevents pitch and glue buildup, extending tool life and maintaining smooth feed rates during panel processing.
- Precision-Balanced Centre Point - the carbide centre point self-locates accurately at the start of each bore, eliminating walk and ensuring hole placement accuracy critical for dowel joint alignment in cabinet and furniture assembly.
- Parallel Shank with Driving Flat (10 x 27mm) - the driving flat prevents shank rotation in collet-style holders or boring machine chucks, maintaining consistent drill orientation under load.
- Super-Strength Steel Body - the steel body resists flex and vibration during deep boring passes, supporting straight, true holes even at full 50mm cutting depth.
- Right-Hand Rotation (RH) - designed for standard right-hand spindle machines, including multi-spindle CNC boring machines, CNC boring centers, and panel processing centers.
Why This Product
- The long-series 85mm overall length and 50mm cutting height make this drill capable of reaching full dowel depth in thick panels and solid wood components - applications where shorter-series drills fall short without repositioning.
- The combination of negatively ground spurs and a precision-balanced centre point directly addresses the two most common boring quality problems - torn fibers at the hole rim and drift at the start of the bore - making it well suited for visible surfaces in furniture and cabinet work.
- Four spiral flutes set this drill apart from standard two-flute dowel drills for deep blind holes in dense materials like HDF and hardwood, where chip buildup in the bore can cause burning, deflection, and premature edge wear.
- The PTFE-coated cutter body resists adhesive and resin buildup, making this drill a practical choice for production environments where panels are pre-glued, edge-banded, or laminated before boring operations begin.
Specifications
- Manufacturer Part Number: 373.100.11
- Brand: CMT Orange Tools
- Diameter: 10mm
- Cutting Height: 50mm
- Total Length: 85mm
- Shank: 10 x 27mm (parallel shank with driving flat)
- Rotation: Right-Hand (RH)
- Number of Cutting Edges: 2 (Z2)
- Number of Spurs: 2 (V2)
- Number of Flutes: 4
- Spur Sharpening: Negatively ground spurs
- Blade Material: Tungsten Carbide (HW)
- Body Material: Super-strength steel
- Cutter Coating: PTFE (black or orange)
Approved Applications
- Drilling blind holes for dowel connections in furniture and cabinet assembly
- Panel drilling in chipboard, MDF, HDF, and coated panels
- Boring operations in hardwood and softwood solid wood components
- Plywood and laminate panel processing
- Furniture manufacturing production lines
- Cabinet making and case goods construction
- CNC boring center and multi-spindle boring machine operations
- Panel processing center applications with collet or chuck-style tool holding
Frequently Asked Questions
What is the difference between this four-flute dowel drill and a standard two-flute dowel drill?
This drill features four spiral flutes instead of the two found on standard dowel drills. The additional flutes provide faster chip evacuation from the bore, which is especially important when drilling deep blind holes in dense materials like hardwood or HDF where chip buildup can cause burning, deflection, or premature cutting edge wear.
What does "negatively ground spurs" mean and why does it matter?
Negatively ground spurs are angled to score the outer perimeter of the hole before the main cutting edges remove material from the center. This scribing action severs wood fibers or laminate surfaces cleanly before the bore is opened up, preventing tearout at the rim of the hole - a critical quality requirement for visible furniture panels and coated surfaces.
What machines is this dowel drill compatible with?
The 10 x 27mm parallel shank with driving flat is designed for use in multi-spindle CNC boring machines, CNC boring centers, panel processing centers, and boring machines equipped with an adapter or chuck capable of accepting a 10mm parallel shank with a driving flat. The driving flat prevents shank rotation under load during boring operations.
What is the purpose of the PTFE coating on the cutter portion?
The PTFE coating applied to the spiral cutter portion prevents pitch and glue residue from adhering to the tool body during drilling. This is particularly valuable when boring pre-laminated, edge-banded, or adhesive-treated panels, as buildup on the flutes can restrict chip flow, increase heat, and reduce cutting performance over time. The coating helps maintain consistent feed rates and extends the working life of the drill between cleanings or resharpening.
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