Product Description
CMT 310.065.12 Dowel Drill 6.5 x 27 x 57.5mm Left-Hand is a precision-engineered, carbide-tipped boring tool built for high-volume furniture manufacturing, cabinet making, and panel processing. Designed for left-hand rotation and optimized for blind-hole drilling in solid wood, chipboard, MDF, laminates, and coated panels, this short-series dowel drill delivers consistently clean, flat-bottomed bores that are ready for dowel insertion without secondary finishing. The PTFE-coated spiral prevents pitch and adhesive buildup during repetitive panel drilling cycles, keeping the tool cutting freely and extending service life in production environments.
Key Features
- 2 HW (Carbide) Precision-Ground Cutting Edges (Z2) - tungsten carbide construction maintains a sharp, accurate edge through extended production runs in hardwood, MDF, chipboard, and laminates, reducing tool change frequency.
- 2 Negatively Ground Spurs (V2) - the negatively ground spur geometry scribes the perimeter of the hole before material is removed, producing clean bore walls and tear-free entry in veneered, laminated, and coated panels.
- PTFE-Coated Spiral Flutes - the orange or black PTFE coating on the spiral portion repels pitch and adhesive residue, so the flutes remain clear and cutting performance stays consistent even during long, continuous drilling operations.
- Precision-Balanced Centre Point - the HW centre point locates accurately on CNC-programmed coordinates and manual boring machine fixtures, preventing drill walk and ensuring hole-to-hole repeatability across large panel batches.
- Parallel Shank with Driving Flat and Length-Adjusting Screw - the 10 x 27mm parallel shank seats securely in multi-spindle boring heads and CNC boring centers, while the driving flat and adjusting screw allow precise depth setting without the shank slipping under load.
- Left-Hand (LH) Rotation - engineered specifically for left-hand spindle positions on multi-spindle CNC boring machines and panel processing centers, this drill fills the left-hand station requirement without requiring an adapter or compromise in cutting geometry.
- Super-Strength Steel Body - the premium steel body resists flex and vibration during high-speed boring, supporting accurate hole geometry and consistent dowel fit across the full 27mm cutting depth.
Why This Product
- Purpose-Built for Left-Hand Spindle Positions - multi-spindle CNC boring machines and panel processing centers require dedicated LH-rotation tooling for left-side spindles. This drill is engineered specifically for that role, delivering the same cutting precision on left-hand stations as right-hand counterparts provide on opposing spindles.
- Clean Holes in Finished Panel Materials - the combination of negatively ground spurs and a precision-balanced carbide centre point means laminated panels, coated chipboard, and veneered hardwood all exit the drill cycle with crisp, tear-free openings - eliminating rework on visible furniture components.
- Reduced Downtime from Pitch and Glue Buildup - the PTFE-coated spiral flutes are specifically designed to resist the adhesive and resin residues common in MDF and laminated panel drilling, keeping the tool running without frequent cleaning stops in production environments.
- Secure, Repeatable Depth Setting - the parallel shank with driving flat and length-adjusting screw locks the tool at a consistent projection in the boring head spindle, so depth is maintained bore after bore without manual re-checking between panel batches.
Specifications
- Manufacturer Part Number: 310.065.12
- Brand: CMT Orange Tools
- Description: Dowel Drill 6.5 x 27 x 57.5mm LH
- Diameter: 6.5mm
- Cutting Height: 27mm
- Total Length: 57.5mm
- Shank: 10 x 27mm parallel shank with driving flat
- Rotation: Left-Hand (LH)
- Number of Flutes: 2
- Number of Spurs: 2
- Number of Teeth: 2
- Spur Sharpening: Negatively ground spurs
- Blade Material: HW (Carbide)
- Series: Short Series (57.5mm)
Approved Applications
- Blind hole drilling for dowel connections in furniture panels
- Panel drilling in cabinet making and case goods production
- Dowel boring in chipboard and melamine-coated panels
- MDF and HDF panel processing
- Hardwood and softwood dowel joint preparation
- Plywood and laminate panel boring
- Left-hand spindle positions on multi-spindle CNC boring machines
- Left-hand stations on CNC boring centers and panel processing centers
- Boring machines with adapter or chuck
Frequently Asked Questions
Why does this dowel drill have left-hand (LH) rotation, and how do I know if I need it?
Multi-spindle CNC boring machines and panel processing centers use both right-hand and left-hand spindles to allow simultaneous drilling from multiple positions. Left-hand spindles require LH-rotation tooling to cut correctly - a right-hand drill mounted in a left-hand spindle will not cut cleanly and can damage the workpiece or the tool. Check your boring machine's spindle specification or tooling chart for each spindle position before ordering.
What does the PTFE coating on the spiral do, and why does it matter for panel drilling?
The PTFE coating applied to the spiral flute portion of this drill acts as a non-stick surface that resists the pitch, resin, and adhesive residues released during drilling of MDF, chipboard, and laminated panels. Without this protection, those residues can pack into the flutes, increasing friction, raising cutting temperatures, and degrading hole quality. The PTFE coating keeps the flutes clear so the drill continues to evacuate chips efficiently throughout extended production runs.
What is the function of the negatively ground spurs on this dowel drill?
The 2 negatively ground spurs scribe a clean perimeter cut at the surface of the workpiece before the main carbide cutting edges remove material from the bore interior. This scribing action severs the surface fibers or laminate cleanly before they can tear, which is especially important when drilling coated panels, veneered surfaces, and laminates where a ragged entry hole would be visible on the finished product.
What shank does this drill use, and how does the length-adjusting screw help in production?
This drill uses a 10 x 27mm parallel shank with a driving flat. The driving flat prevents the shank from rotating in the spindle collet under cutting load. The length-adjusting screw allows the operator to set and lock the exact projection of the drill in the boring head, which directly controls drilling depth. Once set, that depth remains consistent from panel to panel without re-measuring, which is critical for dowel hole accuracy in furniture assembly.
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