Product Description
CMT 314.100.11 Dowel Drill for Through Hole - 10 x 35 x 70mm Right-Hand is a precision-engineered, 2-flute carbide-tipped boring tool designed for drilling clean through holes in panel processing and furniture manufacturing applications. Built by CMT on a super-strength steel body with a tungsten carbide (HW) cutting head and a PTFE-coated spiral, this dowel drill delivers accurate, splinter-free bores through chipboard, MDF, hardwood, softwood, plywood, laminates, and coated panels. With a 10mm diameter, 35mm cutting height, and 70mm total length, it is sized for reliable use in multi-spindle CNC boring machines, CNC boring centers, and panel processing equipment requiring a parallel shank with driving flat.
Key Features
- HW (Tungsten Carbide) Cutting Head - hard carbide material holds a sharp edge longer than standard steel, reducing tool changes and maintaining bore quality over extended production runs.
- Super-Strength Steel Body - provides a rigid, durable foundation that resists deflection under the lateral forces common in multi-spindle boring operations, helping maintain hole position accuracy.
- PTFE-Coated Spiral (Orange or Black) - the non-stick coating on the spiral portion prevents pitch and glue buildup, keeping the flutes clear and reducing friction so the bit runs cooler and lasts longer.
- Precision Balanced Centre Point - the HW centre point locates the drill accurately at the start of each bore, reducing wander and producing consistently centered holes critical for dowel joint alignment.
- 2 Precision-Ground Cutting Edges (Z2) - two finely ground edges create smooth bore walls with minimal tearout on both the entry and exit faces of the panel, supporting clean through-hole results.
- 2 Spiral Flutes - the twin-flute geometry evacuates chips efficiently from the bore, preventing clogging and reducing heat buildup during continuous panel drilling cycles.
- Parallel Shank with Driving Flat and Length Adjusting Screw - the 10 x 26mm shank seats securely in boring machine chucks and multi-spindle heads, and the adjusting screw allows precise depth setting for repeatable, consistent through-hole depth control.
- Right-Hand (RH) Rotation - standard RH rotation is compatible with the vast majority of CNC boring centers and multi-spindle machines, making this drill a straightforward drop-in for most panel processing setups.
- Through-Hole Geometry - the drill is specifically configured for through holes (sharpening specification: through holes 60), producing clean entry and exit faces suitable for dowel connection assembly without additional finishing.
Why This Product
- Designed specifically for through-hole dowel drilling - not a general-purpose bit - meaning the geometry is optimized for the clean exit face and bore-wall finish that dowel joint assembly demands in furniture and cabinet panel production.
- The combination of a carbide (HW) cutting head and PTFE-coated flutes addresses two of the most common causes of early bit failure in panel shops: edge wear from abrasive materials like MDF and HDF, and pitch or adhesive buildup on the spiral that stalls chips and overheats the tool.
- At 70mm total length with a 35mm cutting height, this drill accommodates panels up to 30mm thick while fitting standard boring machine spindle configurations, eliminating the need for extension adapters in most through-hole applications.
- The parallel shank with driving flat and length adjusting screw makes depth setup fast and repeatable across production batches, reducing setup time and the risk of inconsistent bore depth that leads to loose or misaligned dowel joints.
Specifications
- Manufacturer Part Number: 314.100.11
- Brand: CMT Orange Tools
- Diameter: 10mm
- Cutting Height: 35mm
- Total Length: 70mm
- Shank: 10 x 26mm
- Number of Cutting Edges: 2
- Rotation: Right-Hand (RH)
- Material: HW (Tungsten Carbide)
- Sharpening: Through holes 60
- Application Type: Through Hole Dowel Drilling
Approved Applications
- Drilling through holes for dowel connections in furniture and cabinet panels
- Panel processing in CNC boring centers and multi-spindle boring machines
- Furniture manufacturing - through-hole boring in flat-pack and assembled panel components
- Boring through 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 - like this CMT 314.100.11 - is ground with geometry (sharpening specification: through holes 60) that produces a clean exit face as the bit completes the bore, minimizing blowout on the back face of the panel. A blind-hole drill is configured to stop at a precise depth without exiting the panel. This drill is specifically intended for applications where the hole must pass completely through the workpiece for a dowel connection.
What shank size and type does this drill use, and will it fit my boring machine?
This drill uses a 10 x 26mm parallel shank with a driving flat and a length adjusting screw. The parallel shank with driving flat is the standard interface for most multi-spindle CNC boring machines, CNC boring centers, and panel processing centers. The length adjusting screw allows you to set and lock the drill at the correct protrusion depth for your specific spindle configuration.
What materials can this drill be used on?
The HW (tungsten carbide) cutting head makes this drill suitable for chipboard, MDF, HDF, hardwood, softwood, plywood, laminates, and coated panels. The PTFE-coated spiral helps manage resin and adhesive content in engineered wood panels by preventing pitch and glue buildup on the flutes during drilling.
What does the PTFE coating on the spiral do, and is it purely cosmetic?
The PTFE coating applied to the spiral portion - which may appear orange or black - is a functional non-stick coating, not a cosmetic finish. It prevents pitch and glue from bonding to the flute surfaces during drilling, which keeps chips moving freely out of the bore. This reduces friction, lowers operating temperature, and extends the service life of the drill between sharpenings, particularly when boring adhesive-rich materials like laminates and coated panels.
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