Product Description
CMT Two Flute Dowel Drill - 5 x 44 x 77mm Right-Hand by CMT is a precision-engineered boring tool designed for clean, accurate blind hole drilling in solid wood, chipboard, MDF, laminates, and coated panels. Built on a super-strength steel body with a tungsten carbide (HW) cutting head, this long-series dowel drill delivers the depth capacity and cutting performance required for dowel joinery, cabinet construction, and panel processing on multi-spindle boring machines and CNC boring centers. The 5mm diameter and 44mm cutting height make it well-suited for deep blind holes in thick panels, while the right-hand (RH) rotation ensures compatibility with standard machine spindles.
Key Features
- HW (Tungsten Carbide) Cutting Head with Precision Balanced Centre Point - the carbide head maintains edge sharpness through extended production runs, and the balanced centre point locates accurately on the bore axis for consistent hole placement across repeated cycles.
- 2 HW Precision Ground Cutting Edges (Z2) - dual carbide cutting edges distribute cutting load evenly, reducing vibration and producing flat-bottom blind holes with uniform bore geometry.
- 2 Negatively Ground Spurs (V2) - the negatively ground spur geometry scores the material perimeter before the cutting edges advance, minimising tearout and chipout on the surface of laminates, coated panels, and veneered chipboard.
- PTFE-Coated Cutter Portion (Orange or Black) - the non-stick PTFE coating on the spiral portion resists pitch and adhesive buildup, reducing cleaning downtime and extending the service interval between sharpenings.
- Super-Strength Steel Body - the steel shank and body provide rigidity under the high feed rates typical of panel boring operations, reducing deflection and maintaining positional accuracy.
- Parallel Shank with Driving Flat and Length Adjusting Screw - the 10 x 28mm parallel shank with driving flat locks positively in machine chucks and boring head collets, while the length adjusting screw allows precise depth setting for consistent blind hole depth across an entire panel batch.
- Long Series 77mm Overall Length - the extended overall length of 77mm gives clearance for use in thick panel assemblies and multi-row boring heads where shorter drills cannot reach required depth.
Why This Product
- The 44mm cutting height in a 5mm diameter format addresses the specific challenge of drilling deep blind holes in thick furniture panels - giving enough depth for full dowel engagement without breakthrough on the opposite face.
- The combination of negatively ground spurs and a carbide cutting head means the same drill handles both raw solid wood and finished, coated, or laminated surfaces without swapping tools, keeping setup time low on mixed-material panel runs.
- The PTFE non-stick coating on the spiral directly reduces pitch and glue accumulation - a common cause of premature tool failure in furniture manufacturing environments - helping maintain cutting performance over longer production cycles.
- The parallel shank with driving flat and integrated length adjusting screw simplifies tool changeover on multi-spindle boring machines, allowing operators to dial in exact hole depth repeatably rather than resetting from scratch each time.
Specifications
- Manufacturer Part Number: 362.050.11
- Brand: CMT Orange Tools
- Diameter: 5mm
- Cutting Height: 44mm
- Total Length: 77mm
- Shank: 10 x 28mm
- Number of Flutes: 2
- Number of Spurs: 2
- Spur Sharpening: Negatively ground spurs
- Blade Material: HW (Tungsten Carbide)
- Rotation: Right-Hand (RH)
- Shank Type: Parallel shank with driving flat and length adjusting screw
- Coating: PTFE (orange or black) on cutter portion
Approved Applications
- Blind hole drilling for dowel connections and dowel joinery
- Panel drilling in furniture manufacturing and cabinet making
- Boring in solid wood (hardwood and softwood)
- Drilling in chipboard, MDF, and HDF
- Boring in laminates, coated panels, and plywood
- Drilling in plastics
- Multi-spindle CNC boring machine operations
- CNC boring center and panel processing center applications
Frequently Asked Questions
What is the purpose of the negatively ground spurs on this dowel drill?
The 2 negatively ground spurs (V2) score the outer perimeter of the hole before the main cutting edges advance into the material. This scoring action severs the surface fibres cleanly, preventing tearout and chipout on laminates, coated panels, and veneered chipboard - resulting in a clean bore entry with no rough edges around the hole rim.
What does the PTFE coating on the spiral portion do?
The PTFE (polytetrafluoroethylene) non-stick coating applied to the cutter portion of the spiral prevents pitch, resin, and adhesive from bonding to the flute surfaces. This keeps chip evacuation efficient, reduces heat buildup from material adhesion, and extends the time between required cleanings or resharpening - especially valuable in high-volume panel boring applications.
What machines is this dowel drill compatible with?
This drill uses a 10 x 28mm parallel shank with a driving flat and length adjusting screw, which is compatible with multi-spindle CNC boring machines, CNC boring centers, and panel processing centers equipped with standard boring head collets or chucks that accept this shank format. The driving flat ensures positive torque transmission without slippage under load.
What is the difference between this drill and a standard twist drill for dowel holes?
Unlike a standard twist drill, this dowel drill features a precision balanced centre point for accurate location, 2 negatively ground spurs that produce a clean scored perimeter, and a flat-bottom geometry suited to blind hole dowel joints. The HW (tungsten carbide) cutting head and PTFE-coated spiral are optimised specifically for the clean, flat-bottomed holes required in dowel joinery and furniture panel assembly - applications where surface quality and hole geometry directly affect joint strength and appearance.
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