Product Description
CMT Dowel Drill for Through Hole - 5/16" x 27 x 57.5mm, Right-Hand Rotation is a precision-engineered 2-flute boring tool built for clean, accurate through-hole drilling in panel processing and furniture manufacturing applications. Manufactured from super-strength steel with a tungsten carbide (HW) cutting head, this right-hand rotation drill delivers consistent, burr-free exits when boring through chipboard, MDF, hardwood, softwood, plywood, and coated panels. The spiral portion features a P.T.F.E. coating that resists pitch and adhesive buildup, keeping the tool running smoothly over extended production cycles. Designed for use in multi-spindle CNC boring machines, boring centers, and panel processing equipment, this through-hole dowel drill is a reliable workhorse for cabinet shops and industrial woodworking operations alike.
Key Features
- HW (Tungsten Carbide) Cutting Head - delivers long-lasting edge retention when drilling through dense engineered panels, hardwoods, and laminates, reducing downtime for tool changes in production environments.
- 2 Precision-Ground Cutting Edges (Z2) - balanced material removal on both sides of the bore produces a clean, round hole with consistent diameter, minimizing tearout at entry and exit.
- Through-Hole Geometry with Precision-Balanced Centre Point - the centre point registers accurately at the start of the cut and guides the drill true throughout the stroke, preventing wandering and ensuring dowel holes align perfectly for assembly.
- 2 Spiral Flutes with P.T.F.E. Coating - the orange or black P.T.F.E. coating on the spiral section sheds resin, glue, and pitch so chips evacuate freely, extending service life and maintaining cut quality in continuous-run operations.
- Parallel Shank with Driving Flat and Length-Adjusting Screw - the 10 x 26mm shank locks securely into boring machine chucks or adapters and allows precise depth setting without slippage, supporting repeatable drilling depth across every bore.
- Super-Strength Steel Body - the steel shaft resists flex and torsional stress during high-feed boring cycles, keeping the drill running true even under demanding feed rates.
- Right-Hand (RH) Rotation - matches the standard spindle direction of most CNC boring centers and multi-spindle machines, making tool changeover straightforward with no spindle reprogramming.
Why This Product
- Engineered specifically for through-hole applications - the through-hole drill geometry is optimized to exit cleanly through the back face of a panel, which is critical when both faces of a board are visible in finished furniture or cabinetry.
- P.T.F.E.-coated spiral reduces maintenance stops - in high-volume panel lines where adhesive-coated or pre-laminated boards are common, the anti-stick coating keeps flutes clear and extends the interval between sharpenings, supporting consistent output.
- Precision-balanced centre point supports tight dowel tolerances - accurate hole placement is essential for dowel-joined case goods; the balanced centre point starts each bore on location so joints close without gaps or misalignment.
- Parallel shank with length-adjusting screw suits a wide range of boring equipment - the 10 x 26mm shank with driving flat fits standard boring machine collets and adapters, and the adjusting screw lets operators dial in the exact penetration depth without trial-and-error shimming.
Specifications
- Manufacturer Part Number: 313.080.11
- Brand: CMT Orange Tools
- Diameter: 5/16"
- Cutting Height: 27mm
- Total Length: 57.5mm
- Shank: 10 x 26mm (parallel shank with driving flat)
- Number of Cutting Edges: 2
- Blade Material: HW (Tungsten Carbide)
- Rotation: RH (Right-Hand)
- Sharpening Type: Through holes 60
- Coating: P.T.F.E. on spiral portion
Approved Applications
- Drilling through holes for dowel connections in furniture panels and case goods
- Panel processing on CNC boring centers and multi-spindle boring machines
- Furniture manufacturing - through-bore operations in flat-panel components
- Through-hole drilling in chipboard, MDF, HDF, hardwood, softwood, plywood, laminates, and coated panels
Frequently Asked Questions
What is the difference between a through-hole dowel drill and a blind-hole dowel drill?
A through-hole dowel drill is designed to penetrate completely through the workpiece. The geometry of this CMT 313.080.11 drill is optimized for clean exit on the far face, preventing blowout and producing a smooth bore on both sides. A blind-hole drill, by contrast, is designed to stop at a set depth inside the material without breaking through.
What machines are compatible with this drill?
This drill is compatible with multi-spindle CNC boring machines, CNC boring centers, panel processing centers, and boring machines fitted with an appropriate adapter or chuck. The 10 x 26mm parallel shank with driving flat and length-adjusting screw allows secure, repeatable mounting in standard boring machine tooling systems.
What materials can this dowel drill be used on?
The HW (tungsten carbide) cutting head is suitable for through-hole boring in chipboard, MDF, HDF, hardwood, softwood, plywood, laminates, and coated panels. The P.T.F.E.-coated spiral helps prevent adhesive or resin buildup when working with pre-glued or pre-finished panels.
How is the cutting depth adjusted on this drill?
This drill features a parallel shank with a driving flat and a length-adjusting screw. The adjusting screw allows the operator to set the precise drilling depth in the machine's chuck or adapter, supporting consistent and repeatable bore depth across a production run without the need for shims or trial cuts.
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