Product Description
CMT 4 Flute Dowel Drill for Through Holes - 15/64" x 2-3/4" RH is a precision-engineered, right-hand rotation dowel drill designed for boring clean through holes in a wide range of panel materials. Built from tungsten carbide (HW), this long-series boring bit delivers consistent, chip-free results in chipboard, MDF, HDF, hardwood, softwood, plywood, laminates, and coated panels. With a 6mm cutting diameter, 40mm cutting height, and 70mm total length, it is sized for demanding production environments where accuracy and throughput matter. Compatible with multi-spindle CNC boring machines, CNC boring centers, and panel processing centers, this right-hand drill is the go-to choice for cabinetmakers, furniture manufacturers, and woodworking shops that require reliable through-hole boring performance.
Key Features
- Tungsten Carbide (HW) Construction - hard-wearing carbide material maintains a sharp cutting edge longer than standard steel bits, reducing downtime for tool changes in high-volume production runs.
- Right-Hand (RH) Rotation - engineered for right-hand spindle machines, ensuring immediate compatibility with the most common CNC boring centers and multi-spindle panel processing equipment.
- Through-Hole Geometry (60 deg. sharpening) - the 60 deg. through-hole grind produces clean entry and exit surfaces, eliminating tearout on both faces of the panel for a finished result without secondary sanding or cleanup.
- 2-Flute Cutting Design - the dual-flute configuration efficiently evacuates chips from the bore during through-hole cutting, reducing heat buildup and keeping the cut clean throughout the full 40mm cutting height.
- 10x20mm Shank - the robust shank dimensions provide a secure, stable grip in CNC boring machine chucks and adapters, minimizing vibration and maintaining positional accuracy across repeated bores.
- 40mm Cutting Height on a 70mm Long-Series Body - the extended overall length allows boring through panels of substantial thickness while keeping the shank fully seated in the machine spindle for rigid, chatter-free performance.
Why This Product
- The through-hole 60 deg. geometry is purpose-built for panels that require clean bores on both surfaces - making it the right choice for furniture and cabinet components where visible faces must be defect-free.
- The 70mm long-series length paired with a 40mm cutting height gives operators the reach needed to bore through thicker panel stock without sacrificing shank engagement or tool stability.
- Tungsten carbide construction (HW) stands up to the abrasive nature of chipboard, MDF, HDF, and laminates - materials that rapidly wear standard high-speed steel bits - extending service life in continuous production use.
- The 10x20mm shank is compatible with standard CNC boring machine spindles and adapters, making this bit a straightforward, tool-ready addition to existing boring equipment without the need for special toolholders.
Specifications
- Manufacturer Part Number: 375.060.11
- Brand: CMT Orange Tools
- Diameter: 6mm
- Cutting Height: 40mm
- Total Length: 70mm
- Shank: 10x20mm
- Number of Teeth: 2
- Tooth Geometry: Through holes 60
- Rotation: Right-hand (RH)
- Material: HW
Approved Applications
- Chipboard
- MDF
- HDF
- Hardwood
- Softwood
- Plywood
- Laminates
- Coated Panels
Frequently Asked Questions
What machines is this dowel drill compatible with?
This right-hand rotation drill is designed for use in multi-spindle CNC boring machines, CNC boring centers, panel processing centers, and boring machines equipped with a compatible adapter or chuck that accepts a 10x20mm shank.
What is the difference between a through-hole drill and a blind-hole dowel drill?
A through-hole drill, like this one, uses a point geometry (60 deg. sharpening) that is optimized to exit cleanly through the far face of the panel without causing blowout or splintering. A blind-hole drill is designed to stop at a precise depth inside the panel without breaking through the opposite surface. This bit is specifically intended for applications where the bore must pass completely through the workpiece.
What materials can this drill bore through?
The tungsten carbide (HW) construction makes this drill suitable for chipboard, MDF, HDF, hardwood, softwood, plywood, laminates, and coated panels - covering the full range of materials commonly processed in furniture and cabinet production.
What does the 60 deg. through-hole sharpening angle mean for cut quality?
The 60 deg. sharpening geometry refers to the point angle ground into the tip of the drill, which is calibrated specifically for through-hole boring. This angle allows the bit to pierce and exit panel materials cleanly, producing flat, smooth bore walls and minimal tearout on both the entry and exit faces of the workpiece.
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